Question

spear of radius 4.2 cm is melted and recast to form a cylinder of radius 6 centimetre find the height of the cylinder




NO SLAM !!!!​

Answer 1

Step-by-step explanation:

volume of sphere=volume of cylinder

4/3πr3=πr2h

4/3*42/10*42/10*42/10=6*6*h

4/3*42/10*42/10*42/10*1/6*1/6=h

h=4*42*42*42/3*10*10*6*6*10

h=7*7*7/5*5*5

h=2.744