Math Made Easy: Finding the Surface Area of a Cone
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@jediteacher2007 what if the slant height isnt given?
leenzyan 1 month ago
20^2+7^2 = 449.... so how did you get from here to 30cm?? (it's 449 not 900)
elistn 3 months ago
@JessicaChristic Thanks for the help...... I cracked it
slaminjamin32 4 months ago
@slaminjamin32 Hey!!!! alright... The curved surface area is (Pi X Radius x Slant Height). So if you have the radius and slant height, this is how you do it:
(Pi x Radius x Slant Height)= Surface area
(Radius x Slant Height)= S.A x Pi
Slant Height= S.A x Pi x Radius
On the other hand, if you want to find the height, then you should use the Pythagoras Theorem (a2=b2+c2). a2 being the square of Hypotenuse, b2 and c2 being the squares of the other sides.
There you go :)
JessicaChristic 5 months ago
say how would you find the slant height with only the radius and surface area?
slaminjamin32 5 months ago
U should become a teacher
SuperIronClin3 5 months ago
my teacher sucks
shadowknight378 9 months ago
Thank you so much this helped more than my teacher lol!
BigBill1501 9 months ago