if the area of circular sheet is 1386 sq.m.find its diameter
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Area of circular sheet=1386sq.m
πr2 = 1386sq.m.
22/7×r2 = 1386 sq.m.
r2 = 1386×7/22sq.m.
r2= 441sq.m.
r = √441sq.m.
r = 21 m.
We know that
diameter = 2 × radius
= 21 m. ×2
= 42m.
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