Question

the diameter of a sphere is increased by 25% find its new volume



pls answer the question....☣☣☣​

Answer 1

let the diameter be d

increased diameter = 25% of d

= 25d/100

therefore total diameter = d + 25d/100

= 100d + 25d/100

= 125d/100

r = d/2

r = 125d/100/2

r = 125d/100 × 1/2

r = 125d/200

volume of sphere =

4/3pie r3

4/3 × 22/7 × 125d/200

2750d/1050