Question

13. A heap of wheat is in the form of a cone of vertical height 3m and volume 86.625 m3
The heap is to be covered by canvas to protect it from rain. Find the area of the canvas
required.​

Answer 1

Answer:

hello everyone,

given that:

height of cone =3m

volume of cone=86.625m³

find:

area of cone=?

volume of cone=1/3πr²h

86.625=1/3πr²×3

πr²=86.625

r²=86.625/22/7

r²=27.56m

r=5.24m

area of cone=πr(r+√h2+r²)

=22/7×5.24(5.24+√3²+27.56)

=16.46(5.24+6.04)

=16.46×11.28

=185.66m²