Question

Chapter 13 question a metallic sphere of radius 4.2 cm is melted and recast into the shape of a cylinder of radius 6 cm. Find the height of the cylinder

Answer 1

Answer:

if a solid is recasted in any other solid the volume remains the same.

so,vol.of sphere=vol. of cylinder

•4/3πr cube= 2πr square ×h 4/3×22/7×42/10×42/10×42/10 = 2×22/7×6×6×h

h= 98.784/36

H=2.744