Question

1. what is volume of sphere with radius 7cm?

Answer 1

Given :-

• Radius of sphere = 7 cm

To Find :-

• Volume of sphere.

Using formula :-

• Volume of sphere = 4/3 πr³

Solution :-

Volume = 4/3 × 22/7 × (7)³

Volume = 4/3 × 22 × 7 × 7

Volume = 4312/3 cm

Volume = 1437.33 cm³

Hence,

• Volume of sphere is 1437.33 cm³

More formulae :-

• Volume of cube = (Side)³
• Volume of cubiod = Lbh
• Volume of cone = 1/3 πr²h
• Volume of cylinder = πr²h
• Volume of sphere = 4/3 πr³
• Volume of hemisphere = 2/3 πr³

Answer 2

Answer:

volume of sphere =4/3$\pi$$r^{2}$

radius of sphere =7 cm

= 4/3*22/7*7*7

= 4/3*22*7

= 4312/3

= 1437.33 $cm^{3}$

hence, volume of sphere is equal to 1437.33 $cm^{3}$