Question

FIND THE SURFACE AREA HELP?

Answer 1

Ive tried this 3 times.. i keep getting wrong numbers as my answer.

Answer 2

Heres possible options.

Answer 3

area of bottom + side area + area of cone

pi r^2 + 2pi r 12 + pi r L , where L is the length of the segment joining the top of the cone to a point of the base. L = 13.
So, the answer is : \(\pi (r^2 + 2 r 12 + r L)\).

Answer 4

Acilender+Acone

Answer 5

Acilender+Acone+pi r ^2

Answer 6

3.14(5^2+2*5+5)

Answer 7

like that??

Answer 8

dont forget any quanities. : π(r2+2 r 12+rL) = π(2 x 5+24 x r+ 5 x 13)

Answer 9

3.14(5^2+2*5*13*2+5*13)= like this?

Answer 10

im having trouble seeing this equation setup

Answer 11

read again what I wrote, you're not using the same equation. You don't need to change pi into 3.14 because you want to see "pi" in the answer. Just find the factor multiplying pi.

Answer 12

i cant put the pi symbol here tho.

Answer 13

200cm squared*

Answer 14

\(\pi(2r+2\times r\times 12+rL)\)

with \(r=5, L=13\). It's not \(200\pi\)cm\(^2\).

Answer 15

SO (2*5+2*5*12+5*13)

Answer 16

sorry, i copied it with an error.
\(\pi(r^2 + 2\times r \times 12 + rL)\).

Answer 17

I GOT 659 PI

Answer 18

Its still wrong..

Answer 19

could i just have the answer? i need to leave in less then 5 minutes. :/

Answer 20

the answer is 210pi cm^2. but you should rather look at the beginning again why this is true.

659 is the answer when you multiply by pi. dont do that and you will get the right answer.

Answer 21

thx its 210!!