A cylindrical bucket of height 32 cm and radius 18 cm is filled with sand. The bucket is emptied on the ground and a conical heap of sand is formed. If the height of the conical heap is 24 cm, find the radius and slant height of the heap.
Given, Height of cylindrical bucket(h) = 32 cm
Radius of cylindrical bucket(r) = 18 cm
Height of conical heap (H) = 24 cm
Radius of conical heap (R) = ?
⇒ Volume of cylindrical bucket = Volume of conical heap
⇒ r2h =
R2H
⇒ 1818
32 =
R2
24
⇒ 1818
32 = R2
8
⇒ R2 =
⇒ R2 = 1818
4
⇒ R =
⇒ R = 182
⇒ R = 36 cm
Slant height (L) =
L =
L =
L =
L = 12 cm
Slant height = 12 cm
Radius of conical heap = 36 cm