13. From a rectangular plot of land 45 sq.m land has been left for a g

1.	13. From a rectangular plot of land 45 sq.m land has been left for a garden and theremaining part was kept for constructing a house which is square in shape. If thebreadth of the garden is 3 m, find how much land was kept for constructing house,[Ans. 225 sq.m]
Answer» Given :- Length of the size of land for MAKING a garden=3 m The area of this land =45 sq.m Let the length of this rectangular garden be l . We know that :- Formula for FINDING the area of a rectangle is:- $\bold{= area = length \times breadth}$ Which means :- The length of this rectangle :- $= l\times 3 = 45$ $= b = \frac{45}{3}$ $= b = <klux>15</klux> \: m$ Thus, the length of the garden =15 m Then :- The length of the garden = length of side of the squarical land for construction Thus, the length of side of the sqaure shaped construction land =15 m We know that :- The formula for finding the area of of a square is :- $\bold{= area = side \: \times \: side}$ Which means, the area of this squarical construction land:- $= 15 \times 15$ $= 225 \: sq.m$ Thus, the area of this squarical PLOT of construction land =225 sq.m Therefore, the area of land left for construction was =225 sq.m

13. From a rectangular plot of land 45 sq.m land has been left for a garden and theremaining part was kept for constructing a house which is square in shape. If thebreadth of the garden is 3 m, find how much land was kept for constructing house,[Ans. 225 sq.m]

Answer»

Length of the size of land for MAKING a garden=3 m

The area of this land =45 sq.m

Let the length of this rectangular garden be l .

Formula for FINDING the area of a rectangle is:-

$\bold{= area = length \times breadth}$

The length of this rectangle :-

$= l\times 3 = 45$

$= b = \frac{45}{3}$

$= b = <klux>15</klux> \: m$

Thus, the length of the garden =15 m

The length of the garden = length of side of the squarical land for construction

Thus, the length of side of the sqaure shaped construction land =15 m

The formula for finding the area of of a square is :-

$\bold{= area = side \: \times \: side}$

Which means, the area of this squarical construction land:-

$= 15 \times 15$

$= 225 \: sq.m$

Thus, the area of this squarical PLOT of construction land =225 sq.m

Therefore, the area of land left for construction was =225 sq.m