Question

A circle has a diameter of 27 centimeters. Which equation can be used to find the radius of this circle?

Answer 1

Answer:

27 = 2r

13.5 =r

Step-by-step explanation:

We know that the diameter is twice the radius

d = 2r

27 = 2r

Divide by 2

27/2 = 2r/2

13.5 = r

Answer 2

Answer:

r=13.5

Step-by-step explanation:

radius= diameter/2

r= 27/ 2

r= 13.5