A heap of wheat is in the form of a cone whose diameter is 10.5 m and height is 3 m. Find its volume. The heap is to be covered by canvas to protect it from rain. Find the area of the canvas required.
Radius (r) of heap = (10.5/2)m = 5.25 m
Height (h) of heap = 3 m
`"Volume of heap "=1/3pir^2h`
= 86.625 m3
Therefore, the volume of the heap of wheat is 86.625 m3.
Area of canvas required = CSA of cone
= 99.825 m2
Therefore, 99.825 m2 canvas will be required to protect the heap from rain.
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