Q. 114.2( 14 Votes )
let ABC be the given cone.
Here, the height of the metallic cone AO = 20cm
Cone is cut into two pieces at the middle point of the axis.
hence, the height of the frustum cone AD = 10cm
Since ∠A is right-angled, so ∠B = ∠C = 45°
From triangle ADE,
Similarly, from triangle AOB,
The volume of the frustum of a cone
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