Q. 85.0( 3 Votes )

# The cost of paint

Answer :

Given.

Cost of painting the surface of sphere is Rs. 1526

Rate of Rs. 6 per m^{2}

Formula used/Theory.

TSA of sphere = 4πr^{2}

Let radius of sphere is r

Then area of sphere is 4πr^{2} m^{2}

Rate of painting = Rs. 6 per m^{2}

Cost of painting of sphere =

4πr^{2} m^{2} × Rs. 6 per m^{2}

Rs. 24πr^{2}

Rs. 24πr^{2} = Rs. 1526

24 × × r^{2} = 1526

r^{2} = = 20.23

r = √20.23 = 4.49 m

= 4.5 m

Rate this question :

The cost of paintGujarat Board Mathematics

The radius of a cGujarat Board Mathematics

If the radius of Gujarat Board Mathematics

A solid is composGujarat Board Mathematics

Chirag made a birGujarat Board Mathematics

A vessel is in thGujarat Board Mathematics

A show - piece shGujarat Board Mathematics

The diameter and Gujarat Board Mathematics

The diameter of tGujarat Board Mathematics

A tent is in the Gujarat Board Mathematics