Question

the length of a rectangular is 5 cm more than its breadth .if the perimeterof the rectangle is 58 cm .find its dimesion

Answer 1

Let the Breadth of the rectangle be x cm.

Then its length = x + 5 cm

Perimeter = 2 ( length + breadth)

=> 58 = 2 ( x ( x + 5 )

=> 58/2 = 2x + 5

=> 2x + 5 = 29

=> 2x = 29 - 5 = 24

=> x = 29/2 = 14.5

Breadth = x = 5cm and length = x + 5 = 14.5 + 5 = 19.5 cm

I hope this will help you dear..

Always stay safe and stay healthy..

Answer 2

Answer:

Let the breadth of the rectangle be xcm

Then it's length=x+5cm

Perimeter=2(length+breadth)

⇒70=2(x+(x+5))

⇒  

2

70

​  

=2x+5

⇒2x+5=35

⇒2x=35−5=30

⇒x=  

2

30

​  

=15cm

Breadth=x=15cm and length=x+5=15+5=20cm