Question

a swimming pool is 20m in length, 15m in breadth, 4m in depth. Find the cost of cementing it's floor and walls at $35per m square

Answer 1

Answer:

L = 20m

B = 15m

H =4m

LSA = 2(l+b)*h

= 2(20+15)*4

= 2(35)*4

= 280m

Area of floor = l*b

= 20*15

= 300

Total area = 300+280

= 580m

Cost = 580*35

= RS. 20300

Step-by-step explanation:

Answer 2

Answer:

Step-by-step explanation: