Question

9.Jessa drew a circle with a circumference of 18.84 inches. Which of these dimensions could be the diameter, in inches Jessa used to draw her circle? Use 3.14 for pi.

A 6
B 15.7
C 3
D 9.42

Answer 1

A. 6

Explanation:

Write the formula c = 2πr. Substitute the value 18.84 feet for c. Solve the equation for c. Since the radius always measures one-half the length of the diameter, multiply the value of c by 2.

Answer 2

A. 6

The circumference can be found just by multiplying the diameter by pi.

So all you need to do is 18.84/3.14 which is 6.