Question

A heap of rice is in form of come of diameter 12m ,and height 8m. How much of canvas cloth is required to cover the heap?​

Answer 1

Answer:

188.57m  ^2

Step-by-step explanation:

Here, d=12m. So, r= 6m

height = 8m

​  

 Let L be the slant height of cone

∴  L^ 2  =r^  2  +h^  2  

∴  L^2=6^2 +8^2

=> L^2=36+64

L^2=100

L = 10m

⇒  To cover a heap we need curve surface area of cone.

⇒  Curve surface area =πrl

     => 22/7×6×10

     => 188.57m  ^2

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