Question

Height of a solid cylinder is 10 cm and diameter 8 cm. Two equal conical hole have been made from its both ends. If the diameter oaf the holes is 6 cm and height 4 cm, find (i) volume of the cylinder, (ii) volume of one conical hole, (iii) volume of the remaining solid.

Answer 1

Height = 10 cm.

Radius

(i) Volume of cylinder

= $160\mathrm{\pi }{\mathrm{cm}}^3$

(ii) Volume of conical hole diameter of

cone = 6 cm.

(iii) Volume of remaining solid

= $136\mathrm{\pi }{\mathrm{cm}}^3$