Question

A solid metal ball of radius 8cm is melted and cast into smaller boxes each of radius 2cm. Find no. of balls?

Answer 1

RADIUS OF THE BALL=8cm

volume of the solid ball=4/3pie r cube
=4/3 x 22/7 x 8 x8x8
volume of 1 small ball=
4/3 22/7 2x2x2 
now,
volume of big ball / volume of small balls=no. of balls
=64 balls

Answer 2

radius of circle = 8 cm
therefore area = 22 ÷7 × 8 ×8
=