If the radii of the circular ends of a frustum which is 45 cm high are 28 cm and 7 cm. Find the
volume of the frustum.
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radius 1 = 28 cm and radius 2= 7 cm
Height = 45 cm
volume of frustum = 1/3 * 22/7 *h {r 1^2 +r 2 ^2 + r 1 * r 2 }
= 1/3 * 22/7 * 45 {(28)^2 + (7)^2 + 28*7]
= 22/7 * 15 {784 + 49 + 196 }
= 22/7 * 15 {1029]
= 22 * 15 * 147
= 48510 cm^2
therefore the volume of the frustum is 48510.
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