The curved surface area of the cylindrical pillar of height 14cm is 88 sq.cm. The diameter of the base of the pillar will be-
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CSA of cylinder = 2πrh = 2×π×r×14
88 = 2πr×14
r= 88 × 1/2 × 1/π × 1/14 = 1 cm
radius of circle = 1cm
diameter of circle = 2×1 = 2cm
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