Question

Find Length and Width from It's perimeter 60 cm and Area 80 sq cm
​

Answer 1

Answer:

Side of square(a)= 60cm

Length Of rectangle(l)=80cm

We know that,

Perimeter of square = 4a

Perimeter of rectangle = 2(l+b)

According to question

4a= 2(l+b) => 4×60=2(80+b)

240 = 160+2b => 2b =80

So, b=40cm

Now, Area of rectangle= l×b

= 80cm×40cm

= 3200 cm²