Question

The radius of a sphere is 10 cm. If its radius is increased by 1 cm, then volume of the sphere is increased by

Answer 1

Answer:

Original volume = 4π10³/3 = 4000π/3

Increased volume = 4π11³/3 = 5324π/3

Subtracting original from increased volume,

We get: 5324π/3 - 4000π/3 = 1324π/3 cm³

Therefore, volume increased by 1324πcm³

Answer 2

Answer:

V=4/3πr³

Step-by-step explanation:

V=4/3π10³

V=(4000π)/3

V'=4/3π11³

V'=(5324π)/3

∆V=V'-V

∆V=(1324π)/3

∆V=(1324×3.14)/3

∆V=(4157.36)/3

∆V=1385.78 cm²

Thus increase in volume is 1385.78cm²