Question

15 metre deep circular well is 4. 2 find the cost of plastering its inner curved surface area at the rate of 40 per metre square​

Answer 1

Answer:

16200 rupees

Step-by-step explanation:

h=15m

r=4.2m

csa of cylinder =2pirh

2*3.14*4.2*15=405

405*40=16200