The head of a construction company wants to give 4 decorated hemispherical bowls eachto 500 workers on Diwali. The radius of a bowl is 10.5cm. If the decoration of pattern onouter curved surface costs5 per 100cm2, then calculate the cost paid by the head

The head of a construction company wants to give 4 decorated hemispher

1.	The head of a construction company wants to give 4 decorated hemispherical bowls eachto 500 workers on Diwali. The radius of a bowl is 10.5cm. If the decoration of pattern onouter curved surface costs5 per 100cm2, then calculate the cost paid by the head
Answer» Area of hemisphere is 2 x pie x r to the power 2therefore , total balls =4 x 500 = 200 ballsnow , area of one ball = 222/710.510.5=712.8 cm2area of 2000 balls= 2000712.8=14,25,600cm2therefore, cost of designing = (14,25,600*5)/100=Rs.71,280