Question

(MEDAL AND A FAN) 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

Formula for curved surface area of a cone= πrl
where
π is pi
r is radius
l is slant height

Answer 2

ok, what do i do next?

Answer 3

@Auxuris

Answer 4

you fix in the information given

πrl=3.149x9x12

calculate that, i have no calcualtor

Answer 5

340.092