Question

b. If the length of a rectangle is 5 times its breadth x, then the perimeter of the rectangle is m.​

Answer 1

Answer:

Solution

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

Step-by-step explanation: