Question

The inner diameter of a circular well is 3.5m it is 10m deep.Find. (a) it's inner curved surface area (b) The cost of plastering this curved surface at the rate of ₹40 per m2​

Answer 1

Answer:

110m²

4400 rupees

Step-by-step explanation:

inner curved surface area of well=2πrh

2×22/7×3.5/2×10=110 m²

cost of plastering 1m² = 40

cost of plastering 110m²=110×40=4400