Question

The diameter of a right
circular cylinder type
bucket is 21 cm and its
height is 40 cm. The
bucket is full of sand. if
the sand is poured on
the ground it forms a
right circular cone of
height 15 cm. Find the
area of the ground on
which cone stands.​

Answer 1

$\bold\teal{Answer:}$

=>2772 sq.cm

$\huge\fcolorbox{yellow}{lime}{<strong>Step</strong><strong>-</strong><strong>by</strong><strong>-</strong><strong>step</strong><strong> </strong><strong>solution</strong><strong>:</strong>}$

In a right circular cylinder,

d=21

r=10.5

h=40

In a conical sand

h= 15

volume of cylinder= Volume of cone

1/3πr2h=πr2h

r2=110.25*40/5

r2=882

area of ground=πr2

=22/7*882

=2772cm2