Question

The formula for the circumference of a circle is c = 2r, where r is the radius and c is the circumference. the equation solved for r is r = .find the radius of a circle that has a circumference of 16.

Answer 1

Correction:
the circumference of a circle is c = 2πr not 2r

If the circumference equals 16 => 16 = 2*3.14*r
r = 16/6.28
r = 2.55

Answer 2

r=c/2

and Radius=8 when circumference=16

Explanation:

The formula for the circumference of a circle is c = 2r, where r is the radius and c is the circumference.

The equation solved for r is:

r =c/2

Radius of a circle that has a circumference of 16 is:

r=16/2

⇒ r=8

Hence, r=c/2

and Radius=8 when circumference=16