Question

Height of a square room is 3m. The area of it's four walls is 60m per square. Find the area of it's floor

Answer 1

Answer:

25m^2

Step-by-step explanation:

2h(l+b)

2×3(l+b)

6(l+b)=60

l+l=60/6

2l=10

1. l=5m

5×5

25m^2

Answer 2

$\huge\sf{Answer :- }$

Given :-

• Height of a square room = 3m

• Area of Four walls of the square room

To Find :-

• Length of the square room

• Breadth of the square room

• Area of the floor

Formula :-

$\large\sf\fcolorbox{red}{pink}{Four walls area = 2(l+b)h}$

Where,

• l = length

• b = Breadth

• h = Height

Solution :-

We know that,

In Square both length and breadth are same(l=b)

so, we take length and breadth as l

By substituting values according to the formula,

➙ 2(l+l)3m = 60m

➙ 2l × 3m = 60m/2

➙ 2l × 3m = 30m

➙ 2l = 30m/3m

➙ 2l = 10m

➙ l = 10m/2

➟ l = 5m

Hence, The length and breadth of the square room are 5m and 5m

Now Area of the Square Floor = ( L )²

➟ (5m)² = 25m²

Hence, The Area of the floor is 25m²