Question

there are two concentric circles as shown in the following figure the circumpherence of outer circle is 132cm and circumpherence of the inner circle is 88cm . find the difference between their radii

Answer 1

Answer:

Difference = 7.00 cm to the nearest hundredth

Step-by-step explanation:

Circumference of a circle C = 2πr  where r = the radius.

So r = C/2π

So r for outer circle

= 132/2π

= 21.0085

For the inner:

= 88/2π

= 14.0056

Difference

= 6.995