A heap of wheat is in the form of a cone whose diameter is 10.5 m and height is 3m.Find its volume.The heap is to be covered by canvas to protect it from rain.Find the area of the canvas required.
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A heap of wheat is in the form of a cone whose diameter is 10.5 m and height is 3m.Find its volume.The heap is to be covered by canvas to protect it from rain.Find the area of the canvas required.
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Step-by-step explanation:
volume of cone=1/3 x pie x r2 x h
=1/3 x 22/7 x 105/20 x 105/20 x 3=86.625 m3
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Step-by-step explanation:
volumn of cone= 1/3 × pie× r^2 × h
h= 3m r=10.5/2
vol. of heap = 22/7 × 1/3 × 10.5/2 × 10.5/2 × 3 = 86.625m^3
C.S.A of cone = pie × r × l
l = root(r^2 + h^2)
l = root( 5.25^2 + 3^2) =root36.5625 = 6
Area of canvas= pie × r × l = 22/7 × 5.25× 6= 98.91m^2
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