Question

The diameter of a sphere is 14 cm. Its volume is ______.

Options

• 1428 cm³

• 1439 cm³

• `1437  1/3  "cm"^3`

• 1440 cm³ 

Answer 1

The diameter of a sphere is 14 cm. Its volume is `underlinebb(1437  1/3  "cm"^3)`.

Explanation:

Volume of the sphere `=4/3 pi"r"^3`

`= (4/3xx22/7xx7xx7xx7) "cm"^3                   ["d" = 14  "cm" => "r" = 14/2 "cm" = 7 "cm"]` 

`=4312/3 "cm"^3`

`=1437 1/3 "cm"^3 `