Find the length of an arc on a circle of radius 44 corresponding to an angle of 90∘

S = arc length; r = radius of the circle; (θ) = measure of the center angle in radians
s = (central angle/360) *2 (pi) * r = (45/(pi)/360) * 2(pi)r = 1/4r = 1/4(7) = 7/4 = 1.75 <=ANSA)

arc = 10.05 - 10 = 0.05 = 5 min
5 = (theta)/180) * (pi)r = theta or
theta = 5/r =5/7 = 0.71 rad <= ANS B)

1. 9/16 * 12/13 = 27/52

2. 7/10 * 5/28 = 1/8

Step-by-step explanation:

1.

9 / 16 * 12/13

9 * 12 = 108

16 * 13 = 208

108 / 208

Simplify:

27/52

2.

7 / 10 * 5 / 28

7 * 5 = 35

10 * 28 = 280

Simplify:

1/8