A heap of rice is in the form of a cone of base diameter 24 m
A heap of rice is in the form of a cone of base diameter 24 m and height 3.5 m. Find the volume of the rice. How much canvas cloth is required to just cover the heap?
Answer
Radius of conical heap = 12 m
Volume of rice = 1/3 × π × r2 × h
1/3 × 22/7 × 12 × 12 × 3.5 m3
= 528 m3
Area of canvas cloth required = Curved Surface Area of cone = πrl
l = √(122 + 3.52) = 12.5 m
Area of canvas required = 22/7 × 12 × 12.5
= 471.4 m2