the perimeter of base of a right circular cylinder is 16 sq. cm and its height is 5 cm, then the csa is
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Answer:
251.42857142857
Explanation:
approx 251
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Perimeter of base = 16 cm²
= 16 = 2πr
= 16/2 = 22/7 × r
= 8 × 7/22 = r
= 28/11 = r
Height of cylinder = 5 cm
C.S.A of cylinder = 2πrh
= 2 × 22/7 × 28/11 × 5
= 2 × 2 × 4 × 5
= 16 × 5
= 80 cm²
C.S.A of cylinder is 80cm²
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