Question

What is the approximate perimeter of a semicircle with a radius of 9 mm?

Answer 1

Find the circumference of the full circle.

Answer 2

that's the first step

Answer 3

so the formula is C=pi(d)

Answer 4

how i do dat

Answer 5

diameter is 2*radius

Answer 6

so 2*9

Answer 7

now multiply 18 by 3.14 and tell me what you get

Answer 8

56.52

Answer 9

BROFIST

Answer 10

ok now divide that by 2

Answer 11

28.26

Answer 12

ok 28.26 is the perimeter of the curve

Answer 13

now add the 18 for the diameter

Answer 14

28.26+18 = ???

Answer 15

46.26

Answer 16

that's the asnwer

Answer 17

*answer*