Question

A heap of rice is in the form of a cone of diameter 12 m and height 8 M find its volume how much Canvas cloth is required to cover the hip use Pi equal to 3.14

Answer 1

the canvas cloth required is 188.4

Answer 2

Answer:

The volume of the cone is 301.44 meter cube.

188.4 square meter cloth is required to cover the heap.

Step-by-step explanation:

Given : A heap of rice is in the form of a cone of diameter 12 m and height 8m.

To find : Its volume how much Canvas cloth is required to cover the heap.

Solution :

The diameter is 12 m

Radius is 6 m

Height is 8 m

Volume of the cone, $V=\frac{1}{3}\pi r^2 h$

$V=\frac{1}{3}(3.14) (6^2) (8)$

$V=\frac{1}{3}(3.14) (36) (8)$

$V=301.44m^3$

So, The volume of the cone is 301.44 meter cube.

For the canvas we have to find the curved surface area of the cone,

$CSA=\pi rl$

Where, l is the slant height

$l=\sqrt{h^2+r^2}$

$l=\sqrt{8^2+6^2}$

$l=\sqrt{64+36}$

$l=\sqrt{100}$

$l=10$

Substitute the values in the formula,

$CSA=(3.14)(6)(10)$

$CSA=188.4m^2$

Therefore, 188.4 square meter cloth is required to cover the heap.