Answer:
Problem 1: 12.56
Problem 2: 20.94
Step-by-step explanation:
Problem One (left)
Givens
r = 16
Theta = 45 degrees
pi = 3.14
Formula
Length = theta/360 * pi * 2*r
Substitute ans Solution
Length = 45/360 * pi *2*16 Substitute
Length = 0.125 * 3.14 * 32 Combine 45 / 360 = 0.125
Length = 12.56 <<<< Answer
Problem Two
Theta = 120
pi = 3.14
r = 10
Substitute and Solution
Length = 120/360 * pi * 2*r
Length = 1/3 * 3.14 * 2 * 10
Length = 1/3 * 3.14 *20
Length = 20.94
