Question

Ramesh has decided to build a swimming pool of length 10m,breadth12m and height 8m on an empty plot of size 25m×15m . He is discussing with his son Ronit about his plan to build pool and put tiles in the bottom only . Ronit asked the following question in the discussion Ques 39 What is the area of four walls of the pool​

Answer 1

Answer:

hope This Helps You

Step-by-step explanation:

area of four walls = 2(l+b)h

A of four walls is =2x22x8

a of four walls = 352 m²

Answer 2

Answer:

Length of swimming pool l=30m

Breadth of swimming pool b=20m

Height of swimming pool h=1.5m

The total surface area of pool= Lateral surface area + Area of base

                                                 =2h(l+b)+(l×b)

                                                 =2×1.5(30+20)+(30×20)

                                                 =750m2

Side of square tile a=50cm=0.5m

Area of 1 tile =a×a=0.5×0.5=0.25m2

Number of tiles =area of tilearea of pool

                           =0.25750

Number of tiles =3000

Therefore 3000 tiles are required.