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:

height of cylinder = 2.744 cm

Step-by-step explanation:

Volume of metallic sphere = volume of cylinder

4/3 pi r^3 = pi r^2 h

4/3 × 22/7 × 4.2 × 4.2 × 4.2 = 22/7 × 6 × 6 × h

6519744 / 21000 = 792/ 7 × h

6519744 / 21000 × 7/792 = h

2.744 = height

height = 2.744 cm