Question

Find the cost of painting a closed cylindrical drum whose
radius is 49 cm and height 2 m, if the cost of painting is Rs.2
per sq.cm​

Answer 1

Answer:

first find the t.s.a. the find cost

cost of painting per sq.cm=rs.2

cost of painting 15708cm=2×15708=rs.31416

Answer 2

i don't know the answer