Question

The area of a ring is 528 cm2 and the radius of the outer circle is 17 cm.
(i) the radius of the smaller circle. (ii) the width of the ring.
The area
4.2
.
Landen (DEUT
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Answer 1

ANSWER-

Radius of the smaller circle:- 11 cm

width of the ring = radius of the larger circle - radius of the smaller circle

= 17 - 11

= 6 cm