1
Question
Find the area of a ring whose outer and inner radii are respectively 20cm and 15cm
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Solution
Area of ring = π(r21−r22)=
=227[(20)2−(15)2]
=227×175=550cm2
like if satisfied
Area of ring = π(r21−r22)=
=227[(20)2−(15)2]
=227×175=550cm2
like if satisfied
Suggest Corrections
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