Question

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 1

Hey there!! :)

diamètre= 24m

Therefore,

radius= 12m

height= 3.5m or 7/2

Volume

= 1/3π(r^2)h

= 1/3 × 22/7 × 7/2 × 12 × 12

= 528 m cube

Curved surface area

=πrl

= 3.14 ×12× 12.5 (length found by Pythagoras)

= 471 m square.

Answer 2

Answer:

Step-by-step explanation:

Diameter of cone = 24 m

Height of cone = 3.5 m

Volume of cone = 1/3 π r2 h

1/ 3 * 22/7 * 12 * 12 * 3.5

528 m3

Now to find the cloth required to just cover the he will find the CSA of cone

l = √r2 + h2

L = √ (12)2 + (3.5)2

L = √ 144 + 12.25

L = √ 156.25

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