find the surface area of a sphere of diameter 21m
plz friends help me out it's urgent please
with solution
Answers
Answered by
1
Step-by-step explanation:
Surface area is 1385.44 m square
Answered by
1
radius(r) = 21/2 m
Surface area = 4πr^2
= 4×22/7 ×21/2 × 21/2
= 22×3×21
= 1386 m^2
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