Question

The length of a rectangle is twice the width. The perimeter is 90 inches. What is the rectangle's area?

Answer 1

Let the breadth be X cm

So length will be 2x

Perimeter =90

x+2x=90

3x=90

x=30

Lengths =2×30=60

Breadth =30

Area =l×b=60×30 =180 unit square

Answer 2

Step-by-step explanation:

So length will be 2x  

Perimeter =90  

x+2x=90  

3x=90  

x=30  

Lengths =2×30=60  

Breadth =30  

Area =l×b=60×30 =180 unit square