8) A group of students stood in a circle to play a game. The circle had a diameter of 18 meters. What is the circumference of the circle in meters?
a.28.26 m
b. 56.52 m
C.36 m
d. 113.04 m

Your answer is B

Step-by-step explanation:

*If you use 3.14 for pi*

C = 2*pi*r

C = 2*3.14*9

C = 56.52

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6