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The circumference of the base of a right circular cylinder is 77 CM if its height is 21 cm find the volume of the cylinder
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circumference = 2×(22/7) × r
r= (77×7)/(2×22)
r= 12•25 cm
volume = (22/7)×r²×h
= (22/7)× (12•25)²×21
= 9904•125 cm³
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