Question

ESSAY QUESTION HELP!!
The conical hat shown here is a traditional sun-protective straw hat originating in eastern Asia. What is the approximate outer surface area of one of these hats that has a radius of 9 inches and a slant height of twelve inches? Keep in mind that there is an opening in the hat where the base surface would normally be. Show the steps of your solution and explain your work.

Answer 1

Please help!!

Answer 2

Will give fans!

Answer 3

@MarrBear @sahrya Helppp!!

Answer 4

It is in the shape of a cone we need the formula for that

Answer 5

You have that formula correct?

Answer 6

It gave me no formula, that's all it said.

Answer 7

Okay the surface area of a cone is SA = πr^2 + πrl where l is the slant height

Answer 8

The radius is 9 and the slant height is 12

Answer 9

SA=pi(9)^2+pi(9)(12) make sense?

Answer 10

I'm in the 7th grade and I have no clue what any of that is. lol..

Answer 11

wait one second

Answer 12

http://prntscr.com/41ou24
the thing circled in red is thearea of a circle or the flat part of the cone and the one in blue is the area of the curvy surface

Answer 13

We are trying to find the amount of area on the curvy part

Answer 14

Ohh, alright.

Answer 15

Since there is a hole on the bottom, so we dont need the first part of the equation. So the SA=pi(9)(12)
what is 9*12?

Answer 16

108

Answer 17

correct now if you multiply 108 with pi using the calculator you get your answer!

Answer 18

but do not for get to label it with in^2 because it is area

Answer 19

Does that make a little more sense now?

Answer 20

Yea, I get it. Thanks. ^ _^

Answer 21

No problem!