Question

Find the cost of painting the curved surface of a cone @ Rs. 30 per m2 if the radius of the

cone is 0.7 m and slant height is 1 m.​

Answer 1

Answer:

cost of painting is Rs. 66

Step-by-step explanation:

curved surface area = πrl sq. units

here r = 0.7 m

l = 1m

CSA = 22\7 × 0.7 × 1

= 2.2m²

cost of 1m² = Rs. 30

cost of 2.2m² = 2.2 × 30 Rs

= Rs. 66.0