A metal pipe of radius 21 cm and length 90 cm has an outer curved surf – McqOptions

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1.	A metal pipe of radius 21 cm and length 90 cm has an outer curved surface area:
A.	11880 cm2
B.	12880 cm2
C.	11480 cm2
D.	10880 cm2
Answer» B. 12880 cm2

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