Question

SURFACE AREA OF A RIGHT CONE. ILL BUMP YOUR SCORE :D

Answer 1

You supposed to use a formula, or calculus?

Answer 2

formula i guess ... but ive tryed so many and it doesnt work

Answer 3

so any way you know how works for me

Answer 4

I don't remember any formula for this.
To derive it, I would use \[

\int_0^h 2\pi\left(\frac bh\right)x\; dx=\pi \frac bhx^2\Bigg|_0^h = \pi bh
\]In this case \(b=8\) and \(h=\sqrt{14^2-8^2}\) by Pythagorean theorem.

Answer 5

Hmmm, let me see

Answer 6

However for some reason that isn't right... Hmmmm

Answer 7

thats what im saying everything i try isnt right :(

Answer 8

@zepdrix help :(?

Answer 9

I'm getting 176

Answer 10

ill try it thank you!
can you show me how you did it ?

Answer 11

I tried \[
\pi(8)(14)+\pi 8^2
\]

Answer 12

Thank you