the diameter of a cricket ball is 21cm find its curved surface area
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Step-by-step explanation:
The diameter of the spherical ball = 21 cm So, radius = 212 = 10.5 cm Surface area of the sphere = 4π r2 = 4 × 227 × (10.5)2 = 1389 cm2 Surface area ...
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Answer:
d= 21cm
r=21/2 cm
csa=4pie r^2
=4×22/7×21/2×21/2
=1386cm^2
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