Find the curved surface area of one pillar of height of the pillar is 21m and radius of the base is 1m
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Answer:
132 metre square
Step-by-step explanation:
height = 21 m
radius = 1 m
so, CSA = 2πrh
= 2 × 22/7 × 1 × 21 metre square
= 132 metre square.
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