Pawan wants to make a disc …
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Shweta Gulati 7 years, 2 months ago
diameter of circular plastic sheet = 14cm
radius = 7cm
Area = \( { \pi\ r^2}\)
= 154 cm2
Diameter of circle he cuts = 10cm
Radius = 5cm
Area = 78.57 cm2
Area of disc = 154 - 78.57
= 75.43 cm2
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