Question

Which of the follow measurements represents the radius of a circle that has a

diameter length of 9.4 meters?
(a) 18.8 meters
(b) 11.4 meters
(c) 7.4 meters
(d) 4.7 meters

Answer 1

4.7 D

Explanation:

9.4/2=4.7

Answer 2

D

Explanation:

The radius of a circle is always half the size of the diameter, and therefore, the diameter is always double the size of the radius.

Knowing this if you are given the diameter divide by 2

SO 9.4/2 = 4.7

4.7=r