Question

Length of a rectangle is double its breath. If the perimeter is 30cm,then find the length of the rectangle in cm.

Answer 1

let the breadth of the rectangle b2x therefore length is 2x
now 2x+x=30

Answer 2

HEYA MATE, HERE IS UR ANSWER


$<b><i>Let the breadth be x cm .$

Then length =2x

Perimeter = 2 (l+B)

But According to the question

Perimeter = 30 cm

2 (l+b)=30 cm

2 (2x+x)=30 cm

2 (3x)=30 cm

6x=30 ćm

x=$\frac{30}{6}$

x=5

So breadth =5 cm

Length =2×5

= 10 cm

$\mathbb{Be\:Brainly}$