Guest

7. The inner diameter of a circular well is 3.6 m. It is 10 m deep. Find (l) its inner curoed surface •area. (ii) the cost of pl.astering this curoed surface at the rate of r40 per m2.

7. The inner diameter of a circular well is 3.6 m. It is 10 m deep. Find
(l) its inner curoed surface •area.
(ii) the cost of pl.astering this curoed surface at the rate of
r40 per m2.

Grade:12th pass

1 Answers

Pawan Prajapati
askIITians Faculty 60782 Points
2 years ago
. (i) Inner curved surface area = 2JrTh = 2 )( 22 )( 36 >< 10 m2 7 20 = 110 m2 SURFACE AREAS AND Vou.JMEs 187 (ii) Cost of plastering = ' (40 >< 110) = '1 4400.

Think You Can Provide A Better Answer ?