Listen NCERT Audio Books to boost your productivity and retention power by 2X.
The surface area of a sphere is 5544 cm2, find its diameter.
Let the radius of the sphere be r cm.
We know that, surface area of a sphere = 4πr2
Given, surface area of a sphere is 5544 cm2
⇒ 4πr2 = 5544
⇒ 4× × r 2 = 5544
⇒ r2 = 441
⇒ r = 21 cm
Thus diameter = 42 cm