Question

8. A pool is 20m in length, 10 m in breadth and 3m in depth. Find área of
cementing its four walls.​

Answer 1

Step-by-step explanation:

L= 20 m

b= 15 m

h= 4 m

First we find the area of floor

=>20x15

=>300 m²

Then, we find area of walls

=>2(20x4) + 2(15x4)

=>2(80 + 60)

=>280 m²

Add both to get total area

=>300+280 = 580 m²

Multiply total area and cost per m²

=>580 x 12

=>Rs. 6960

Answer 2

Answer:

lenght of pool is 20 m

breadth of pool is 10m

height of pool is 3m

area of four walls=(L*B*H)

20*10*3 = 600 m