Question

Mansion has 12 cylinder Vikalp pillars each having radius 50 cm square and height 3.5 M find the cost of cost to paint the curved surface of the pillars at 20 square per meter​

Answer 1

Step-by-step explanation:

12 right cylinder pillars each having radius 50 cm and height 3.5 m.

r=0.5 m

h=3.5 m

Cost of paint =Rs. 20 per m

2

We know that the lateral surface area of the cylinder

=2πrh

According to the question,

Total cost =12×20×2×

7

22

×0.5×3.5

=12×20×2×22×0.5×0.5

=Rs. 2640