Question

a heap of wheat is in the form ofa cone of diameter 16.8m and height 3.5m. Find its volume .How much cloth is required to just cover the heap?

Answer 1

Given h = 3.5m, d = 16.8 Then the radius will be r = d/2 = 8.4m.

We know that volume = 1/3pir^2h

                                     = 1/3 * 22/7 * (8.4)^2 * 3.5

                                     = 5433.12/21

                                     = 258.7 m^3.


We know that Height l = root r^2 + h^2

                                      = root (8.4)^2 + (3.5)^2

                                     = root 82.81

                                     = 9.1m.


Cloth required to just cover the heap = pirl

                                                               = 22/7 * 8.4 * 9.1

                                                               = 240.24m^2.


Hope this helps!

Answer 2

volume 258.7m3

CLOTH. 240.24m2

hope this helps!!