Answer:
A)
Step-by-step explanation:
Let me know if anything is unclear :)
First Column, -x and 5 third column, -x and 2
You can find the perimeter of a circle by using the radius.
circumference = 2

Circumference = 2

circumference = 24 pi
Since you are only trying to find half of the circle you would divide your answer by 2
24pi / 2 = 12 pi
12 pi = 37.68
The answer is B. 37.7
Answer:
B
Step-by-step explanation:
6a-4 = 3a+54
3a = 58
a = 58/3
a= 19.333