A wooden spindle is a cylinder of radius 2 cm and length 15 cm with a cone of the same radius and height 3 cm fixed at each end. Find the total volume of the spindle, in cubic centimetres. (Take π = 3.14.)

Question

Accepted Answer

213.52. Cylinder = \π r^2 h = (3.14)(4)(15) = 188.4 cm³. Each cone = 1/3(3.14)(4)(3) = 12.56 cm³, so the two together = 25.12 cm³. Total = 188.4 + 25.12 = 213.52 cm³. 263.76 drops the 1/3 from both cones; 200.96 adds only one cone; 188.4 is the cylinder alone.

A wooden spindle is a cylinder of radius 2 cm and length 15 cm with a cone of the same radius and height 3 cm fixed at each end. Find the total volume of the spindle, in cubic centimetres. (Take π = 3.14.)

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