Geometry Perimeter Rectangles SAT MATH Problems NLC

[KYLegoManiac]

i know what it is uuuuuuu uuuuuu u u u uuuuuuuuuuuuu i dont know or care what it is because i know what it is

[Austin101123]

y+x+y+x+2x+y+2x+y= 2y+2x+4x+2y= 4y+6x= A) 2(3x+2y)... i learned this in 5th grade dude (but i knew it in 2nd a little bit a was really good in 3rd)

BTW  2y=x in this problem so... the answer could be simplified to just 8x

THE ANSWER IS 8X

Also. The area is 2x(y)+x^2+y^2

[Austin101123]

y+x+y+x+2x+y+2x+y= 2y+2x+4x+2y=  4y+6x= A) 2(3x+2y)... i learned this in 5th grade dude (but i knew it in 2nd a little bit a was really good in 3rd)

BTW 2y=x in this problem so... the answer could be simplified to just 8x

THE ANSWER IS 8X

[Austin101123]

y+x+y+x+2x+y+2x+y= 2y+2x+4x+2y=  4y+6x= A) 2(3x+2y)... i learned this in 5th grade dude (but i knew it in 2nd a little bit a was really good in 3rd)

[pecoca]

the answer is D

[mducky6]

4(x+y)

[jknets]

NUMBA don't work NICCA

[revolutiongames2004]

ok notice, that if you were to make concave (outward pointing) all the convex (inward pointing) corners of the figure, you are left with a rectangle having the same parameter. easy. then take any 2 perpendicular sides (pick the easiest 2 if you wish) and multiply the sum of both sides by 2.

[triangletheorytrey]

The teacher is complicating the problem furthermore. Speak clearly.

[darekpflughaupt]

Area= x^2+y^2+2xy, perimeter = 2(2y+3x)

[spaghettionetime]

this guy is terrible at explaining things. the perimeter is 6x + 4y which factorises to 2(3x + 2y).

You go around the shape adding up the values. But be careful because some of the sides are not labelled with x or y. starting from the top right corner going down, you have length y. the next length across is not labelled and you have to work it out

[spaghettionetime]

sorry, starting at the top left corner!! whoops

[mideerman]

p= 2x+y+x+x+y+y+y=4x + 4y r u serious im in seventh grade and i can do this crap ( but imin a college preperitory school :)

[rob2581]

I lov Math my favorite.

[roughneckmonkey]

Oh ok

[mathproblems]

thanks for the announcement in your high school. did u take the test?

[triangletheorytrey]

The test is rudimentary.

[roughneckmonkey]

D.

The perimeter is the sum of the sides so:

2x + x + x + y + y + y + y = 4x + 4y

You factor out the 4 an that gives you

D. 4(x+y)

correct?

[mathproblems]

No You are missing the lenghs

This figure in perimeter wise the same as the rectangle with the length (2x+y) and width (x+y)

so the perimeter is 2(2x+y)+2(x+y)=2(3x+2y) the answer A

[bcdm3w]

uh, i don't get what you just said...O_o

[dannypineda]

actually i think the answer is 4(x+y)!

i mean cause i mean u used the formela of a rectangle which was 4 sides!! 2L+2W

n this has 9 sides!! n well adding all the sides does the trick!

n well i also saw that x=2y

so if it was a rectangle the lengt would b 2x+y or 5y

n the w would b x+y or 3y

but i still think that the answer is D but dunno!!

can u prove me wrong??

[dannypineda]

actually i think the answer is 4(x+y)!

i mean cause i mean u used the formela of a rectangle which was 4 sides!! 2L+2W

n this has 9 sides!! n well adding all the sides does the trick!

n well i also saw that x=2y

so if it was a rectangle the lengt would b 2x+y or 5y

n the w would b x+y or 3y

but i still think that the answer is D but dunno!!

can u prove me wrong??

[siggy75]

Draw a rectangle around the shape and you will see it come together. Don't forget that opposite sides of a rectangle are the same length. All you are effectively doing is flipping the corners over so that the shape becomes a rectangle. On the the right-hand side of the shape it is impossible to know what the lengths of the two missing sides are but you do know that they add upto x.

[titanas2]

hmm...i get (x+y)^2