Question

find the answer to number 12, photo attached, find the area

Answer 1

i'm assuming r = 2
lateral ares = pi r s = 9 pi = 28.27 sq units

Answer 2

Pg 621 #12

a. 31 m^2
b. 34 m^2
c. 37 m^2
theese are the answer options

Answer 3

lateral area = pi * r * s = pi * 2 * 4.5 = 9* pi = 28.27 m^2

Answer 4

but thats not an option?

Answer 5

i wonder what value that book uses for pi!!!!

Answer 6

idk....

Answer 7

well selena - none of those options are correct - i assure you.

Answer 8

work it out on your calculator

Answer 9

unless i've got the formula wrong - i'll check

Answer 10

the website gives formula as

1/2 perimeter * slight height
= 1/2 * 2 pi r * s
= pi * r*s
= 2 *4.5 *pi
= 9 pi as before

Answer 11

Lateral area of Cone:
A = pi r s = pi * 2 * 4.92 = 30.9
(From the pic. : s = sqrt ( 4.5² + 2²) = 4.92)

Answer 12

=> a. 31 m^2