The area of a ring is 528.cmsquare and the radius of the outer circle is 17 cm . Find
(1) the radius of the smaller circle
(2) the width of the ring
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Area of the ring=528cm^2
πr^2 = 528
22/7r^2 = 528
r^2 =528x7/22
r^2 = I68
r = 168 ^1/2
r = 12.96cm (approx.) (1)
Width=17-12.96 = 5.96cm
πr^2 = 528
22/7r^2 = 528
r^2 =528x7/22
r^2 = I68
r = 168 ^1/2
r = 12.96cm (approx.) (1)
Width=17-12.96 = 5.96cm
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