Question

the perimeter of rectangle is 54 km cm. one side is 6 cm longer than the other . find the area of rectangle​

Answer 1

Answer:

216cm^2

Step-by-step explanation:

Let one side of rectangle be x and the other will be x+6.

A.T.Q

Perimeter of a rectangle =2×(l+b)

54 cm =2×(x+x+6)

54 cm. =2×(2x+6)

54. =4x+12

54-12. =4x

42. =4x

42/4. =x

Therefore,x is 12 cm.

Length=x=12 cm.

Breadth=x+6=12+6=18cm.

Area of rectangle =Length×breadth

=12×18

=216cm^2.

Hope this helps you.....

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Answer 2

Answer:

perimeter= 54

let one side=l=x

other sides=6=x+6

*as we know

p=2(l+b)

2(x+x+6)=54

2(2x+6)=54

2x+6=54/2

2x+6=27

2x=27-6

2x=21

x=21/2

*as we know

area of rectangle= l+ b

x( x+6)

21/2(21/2+6)

21/2