Math, asked by prince722, 1 year ago

the perimeter of a square is 40 cm. a rectangle of lenght 20 cm has the same area as that of the square. find the breadth of the rectangle

Answers

Answered by sriyanka82
78
The answer will be 5 ..... EXPLANATION is below......

Perimeter of square =40 cm
Let the side be x
A.T.Q,

Perimeter of a square = 4 × sides
40 cm = 4x
4x = 40 cm
X = 40 / 4
X = 10 cm

So, area of the square,
Side × side m square = 10 × 10 cm
= 100 cm square
Area of square = Area of rectangle
100 cm square = 100 cm square

In the rectangle,
Length = 20 cm
Breadth = x
Area = 100 cm square

A. T. Q,
Length × breadth = Area
20 × X = 100
20 x = 100
X = 100 / 20
X = 5 cm
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Answered by nehagupta2007
31

perimeter of sq. =40cm

length of rect.= 20cm

Area of rect .=Area of sq.

Breadth of rect. be x

Perimeter of sq. =4 ×side (side=x)

40cm= 4×x

40cm=4x

x= 40/4

=10cm

side of sq.= 10cm

area of sq.=side×side

=10×10

=100cm

Area of sq. =Area of rect.

=100cm=100cm

Area of rect.=l×b

100cm=L×x

100cm=20×x

=20x

x=100/20

=5cm

Breadth of rect.=5cm ans

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