find the volume and curved surface area of a right circular cylinder of height 21 cm and base 5 cm
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volume = pi ×r^2 × h = 22/7 × 5^2 × 21 = 11,550÷7 = 1650
csa = 2 × pi × r × h = 2 × 22/7 × 5 × 21 = 4,620÷7 = 660
csa = 2 × pi × r × h = 2 × 22/7 × 5 × 21 = 4,620÷7 = 660
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