Answer:
see explanation
Step-by-step explanation:
The length of the arc is calculated as
arc = circumference of circle × fraction of circle
= 2πr × ← r = 1
= 2π × = ≈ = 1.57
50*C x 9/5 + 32 = 122 *F
1
as the product of 90 degrees and 20 degrees
30x60=1800
90x20=1800
