Question

Heya _____
Please solve the question given below

A heap of wheat is in the form of a cone whose diameter is 10.5 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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Answer 1

Hi ,

Dimensions of the conical shaped heap

Diameter = d = 10.5 m

Radius = r = d / 2

r = 10.5 / 2 = 5.25 m

i ) volume of the heap = volume of the cone

V = ( pi × r ^2 × h ) /3

= (22 / 7 ) × ( 5.25 )^2 × 3 / 3

= 86.625 cubic cm

ii ) let the slant height of the cone = l cm

l^2 = r^2 + h^2

= 3^2 + ( 5.25 )^2

= 9 + 27.5625

= 36.5625

Therefore ,

l = 6.046 ( approx)

The area of the canvas required to from rain

= curved surface area of the cone

= pi × r × l

= (22/ 7 ) × 5.25 × 6.046

= 697.62 / 7

= 99.66 cm^2

I hope this helps you.

Answer 2

HEY MATE!

HERE IS YOUR ANSWER!

:-)