Step-by-step explanation:
circumference of a circle
U = 2 x pi x r
what you know:
U = 13
rearrange and solve for r
U/(2 x pi) = r
Answer: C) 150°
Step-by-step explanation: all the angles are the same
!!ANSWERS!!
1: 10%
2: 8%
3: 1.25%
Answer: c
