Trigonometry Word Problems - YourTeacher.com - Geometry Help

[Hongichhan]

this is boring as hell

[gobbstopper31]

couldnt you also use sine law?

[esiruno]

her solution is not accurate because she did not get the height of neil.

[TehRedRover]

@esiruno she doesn't need the height of neil...just the angle which he saw the rocket at.

plus i doubt they'd screw up a question that is pretty simple.

[esiruno]

@TehRedRover the drawing's even wrong because the angle started from the ground not from neil's eyes... oh well.. i'm just saying that it's more accurate if you add neil's height because the rocket launched from the ground.

[WizkidKumar]

:-P



[Johndavis4542]

Beef curtains

[anguelmetodiev]

Yeah the teachers on YouTube and Google are the best.

[CURSORONME]

she scares me

[EpicCatFace]

Whoever built this robot teacher made her very human like.

[WizkidKumar]

LOL

[omgwtfbbqlmaorofl]

her voice sounds sharcashtic

[OfficialAla]

DEAR ALL SCHOOL PRINCIPLES, PLEASE FIRE EVERY SINGLE TEACHER AT SCHOOL! & Hire Youtube and Google. (; I think all us students can agree we learn MORE FROM THEM than we do from the teachers at school that can barely teach. Isn't is sad enough that we have to go ONLINE to find help instead of the place we get our education from? YOUTUBE AND GOOGLE teach me more than school does! Sincerely, pissed off students.

[CURSORONME]

@OfficialAla totally agree

[shaf014]

@OfficialAla

You spelled Prinipals wrong. You're welcome.

[AlvinIsChipmunk]

@shaf014 u spelled it wrg too

[shaf014]

@AlvinIsChipmunk I have failed humiliatingly. You spelled "wrong" wrong though <3

[AlvinIsChipmunk]

@shaf014 by the way thats just the short form of wrong....

[shaf014]

@AlvinIsChipmunk In my book, prinipals is the short form of principals. So be it. The actual spelling of our mistakes will always be wrong my good friend. Let this bathe.

[lettuce623]

@OfficialAla Hell YA well said!

[Dirtyshamable]

lol at how she bends down to write

[IICreedll]

↓ ....you come to youtube for upcoming exam?

[cherryvanilla17]

YAY i get it good thing i watched this because i have an upcoming exam

[69umopapisdn]

your rocket looks like a goldfish

[JeziMingo33]

I hate you. Go die.

[FYIMArcO]

I turned this into feet and I got 5,131.64 feet. I Like it better that way because I don't like how .97 miles looks.. :D

[Shukria123]

How do you know when to use tangent versus sine versus cosine?? Can someone on here explain this to me.

[slayerocket]

@Shukria123

Sure thing! From the perspective of the given angle -which does not include the right angle- if you are finding the side opposite that angle, you can use tangent if you are given the adjacent side or sine if you are given the hypotenuse. If want to find the adjacent, you can use tangent if given the opposite side or cosine if given the hypotenuse. If finding the hypotenuse, you can use sine if you've got the opposite, or cosine if you have the adjacent. Just remember "SOCAHTOA"

[Shukria123]

@slayerocket thank you

[slayerocket]

@Shukria123

SOHCAHTOA

SINE OPPOSITE over HYPOTENUSE

COSINE ADJACENT over HYPOTENUSE

TANGENT OPPOSITE over ADJACENT

[Sithis97]

@slayerocket sounds like a volcano :P

[AutumnxDay]

-.- so easy.. If anyone can't do this well their dumb. Sorry.

[TheBlodwyn]

amazing!



[HellaReckless]

thanks i lot i never understood this until after i failed the class if only i had it last semester.lol thats not even funny.

[MrPirate408]

when you put it into your calculator, 1st press mode button and change it from radian to degree and then press 5 tan(11) you will get ~.97

[MrPirate408]

when you put it into your calculator, 1st press mode and change it from radian to degree and then 5 tan(11) you will get ~.97

[bigthang2288]

how u put that in the calculator??

[w7i7n7k7]

feel like i'm getting talked to like a retard

[toms22s]

what if u wanted to know the length of the line from neil to the rocket, and u knew how far from the rocket pad he was, and how high the rocket is, and the only angle u knew was the 90not the 11deg

[apolloholix13]

@toms22s You would use the Pythagorean theorem to find the hypotenuse.

[crazyghetto978818]

I thought that rocket was a fish

[dgbillybobjoe93]

ah she's creepy. but very helpful.

[Phantom9442]

Oi oi ;)

[AliceAddie]

3:26-3:29

what are you staring at!!!

[dgbillybobjoe93]

@AliceAddie same with the beginning!!!!

[FromHere2U]

thumbs up for the fish rocket. :)

[nenadt100]

my bad calucations* and not gor got

[nenadt100]

@25sweetspicy it depends on your calculetions i got 0.97 but if u gor 0.96 its ok too no one will penalise u for that

[aeroroxysports26]

thx this realy helped

[25sweetspicy]

isn't it 0.96 instead of 0.97?????????????

[Tliken]

I have a graphing calculator and whenever I do the problems the way she writes them out. I get bogus numbers like:

5*tan(11) = -1129.75

...anyone else?

[LILSHAK23]

@Tliken your supposed to type it in like tan11 like no space or multiplication. just like this ; tan11*5

[Omens123]

@Tliken your calculator probably isnt in the right setting

[mattt1994]

If she was my teacher I think I would get 100% in math no problem!!!

[drewmancini2]

yeeessssssssssssssssss creepy lady helped me out

ALIENS DO EXIST

[steveecker]

She forgot to take into account for Neil's height, because his eyeballs aren't in his feet, and an angle of 11 degrees could be affected dramatically. (since her 11 degrees seems just short of being around 45 degrees). I like this videos, because they help, they just forget to use practical applications practically... And of all the vids i've seen online, NONE have had such consistent comments except for how creepy this lady is lol, and her haunting glare. I don't mind it so much... :)

[steveecker]

@steveecker Also considering the rocket is launching 90 degrees from a flat horizon, and the 5 mile terrain and Neil's elevation is perfectly level with that of the launch pad... Otherwise we can't assume it's a proper right angle. Most rockets are fired NOT straight up, because their intended destination is somewhere on earth. If you were trying to throw a rock at a target, would you throw it straight up? We have to have Neil confirm with NASA where this rocket's headed, and assume it's space.

[steveecker]

@steveecker Atmospheric disturbance, temperature, humidity also will affect his vision over 5 miles (as with snipers), his ability to measure it as exactly 11 degrees also. Five miles is a long distance when it comes to naked eye observations, hence the reason Neil feels the rocket looks like a fish. This problem gets more and more complicated the more I think about it... Poor Neil.

[MrBigBryce]

@steveecker your fkn retarted. its not about that shit its maths

[steveecker]

@MrBigBryce What do you think we use math for Einstein...? You call me retarded, read what I wrote. Those are realistic applications that people use every day... The same ppl that say "What am I EVER going to use this crap for"... Get over it.

[25sweetspicy]

@steveecker lol..... true

[gemma0chan]

In the world of maths...

...rockets look like fish :p

[lalagirl211]

i had this one...and yah it'S easy.....but i have the same question like this and when i look back at the book my answer is not ryt.............plz help what is the answer of this one....Claire knows that the Calgary Tower is 191m high.At a certain point,the angle between the ground and Claire's line of sight to the top of the tower was 81 degrees.To the nearest meter,about how far was Claire from the tower?Why is this distance approximate??....

[hannibal123ful]

@lalagirl211 I think its '191 tan 81' = 1205.92. But im not 100% sure.

[Runaholism]

Did she really write that on the board? That's the best hand writing I have ever seen!

[jiminijr]

wow thats kinda easy

[XxGTRxXSKYLINE]

hahaha ye..last too seconds she is staring into my soul

[99doogs]

wow, i actually understand these videos, too bad im in summer school now

[littletruble]

okay so neil sees a fish on top of a shark

[blitzflame08]

someone please help me with this.

ABC and DEF A=32, B=90, E=90 and F=58 if a=1.2m, b=2.4m and e=1.8m, find EF

[JustAnotherFailureTv]

i thought the website was free :(

NRDZ RUL3!

[icortes09]

THAT WAS EASY............THANK YOU

[VeniasHD]

I love Trigonometry, but having to repeatedly draw the diagrams from the questions is so irritating.

[95styles]

well you're meant to buy yourself a scientific calculater innit.....

[victormuyiwafolabi12]

can u make a video about angle of depression!

[catrachit]

thank you!

[AshleyPunkPrinces100]

i got the answer 0.972....LOL........never mind i didnt unerstand this thing anyway.......ROTFL!!

[darktard]

you got it right... 7 is the hundredth and since 7 is higher than 2 it stays a 7 so its 0.97 instead of 0.972

[grig24x]

that looks like a fish not rocket.. who ever programmed this robot needs to re check it..

[iTszTeddy]

cooooool

[fanofwrestling123]

Never mind, got it.

[fanofwrestling123]

How do you get .97 on the calculator?

[Lois1593]

How do you go the .97 if you don't have a calculator?

[acemasterke]

you must have a calculator that has the functions: SIN, COS, and TAN.

[itxjamaicabetch]

lol. its creppy how she just smiles and stares at the end for like 2 seconds. hahah. hammered!

[Runaholism]

@itxjamaicabetch LOL! She's a math zombie!

[cutecindy7725]

i was just starting to understand but you fucking said something about mutpilying 5 with what so ever then i lost my understanding!!!!! go to hell you fucking womann!!!!

[Traufelofdoom]

you have to isolate the x in order to solve for the x.. and because it's x/5.. you have to multiple by 5 to eliminate the denominator..

[hisworhipfullness]

Pity you don't show the calculator inputs. When I was at school they didn't have calculators and so I don't know how to use them. But thanks, nice to have a resource that one can go back to and understand the methodology though, thanks.

[rockingmonster12]

ey how did u get .97

[69jcpimp69]

if you have a scientific calcluator or any calc with the tan cos or any of those buttons then you punch in 5 tan (tan button) 11 and equals then you round it

[JoNyB0i]

calc needs to be in degree mode

[adridram77]

omg that is the neatest writing ive ever seen

[Froggirl20260]

haha it is!

[lovelessdarkness]

wow.....

[Cervy18]

That rocket looks like an atom bomb that's about to kill Neil :[

Neil don't deserve to go out like that.

[PureSickness537]

Forget Neil.

[jigzoby]

he deserves to die because she launched a fish rocket XD

[wakeupfist]

The robot speaks the truth.

[fiberkanin]

Thanks.

[nirmalsuki]

We were never allowed to use a calculator when we were in school, and I don't need one. I love looking things up in the mathematical tables... Gives me something to do, and it's faster.

[nirmalsuki]

the rocket looks like a fish

[LordVasion]

geez, i didn't know neil's eyes were in the ground...they didn't really compensate for his height :-P

[zestCC]

i caugh that two, to compensate- add neils height (up to his eyes) to the final height(when you solved from his eyes

[knowledgeis4me]

angle of elevation is the angle made form the horizontal, not from neil's eyes

[Lil92Saint]

I'm french but i can do the problem with no problems.

You can almost use cosinus of the angle, or Pythagor Theory...

[FrostPegasus]

And by the time you calculated that, the rocket has shot into space.

So much for a practical use of math. :-p

[CristallsofWater]

fine, tan...

[CristallsofWater]

that's easy...sin sumething

[modelun12]

do some calculus videos

[ItsKateSnow]

good practise )) pity it`s not high maths..

[hanotube]

Hey, talk about rocket science LOL

[me8cookies]

Thanks for this! The example helps a lot lot lot lot lot lott.

[CorbeauBlanc]

How do we know that the rocket is at 90 degrees?

[laurenlollie]

well the ground is supposed to be a straight line, and the rocket that left the launch pad should be directly above the launchpad, therefore it makes a rightangled triangle when drawn with the angel Neil saw the rocket (11 degress)