Question

the circumference of two concentric circles are 8π and 6πcm therefore the distance between the raddi is
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Answer 1

Answer:

The difference between the outer circle and the inner circle (R-r) = 7 cm.

The circumference of outer circle is given as 132 cm.

Finding the radius of the outer circle,

2πR = 132

R = 21 cm

Now circumference of inner circle is given as 88 cm.

Finding the radius of inner circle,

2πr = 88

r = 14 cm

Now we have to find the difference between the radii

(R-r) = (21-14) = 7 cm