Question

Plz answer mate in step by step solution

Answer 1

Given perimeter of rectangle =800cm =>8m

Perimeter of rectangle=2(l+b)

8=2(2.5+x)

8=5+2x

8-5=2x

3=2x

x=1.5m

Answer 2

2(2.5+x) equal to 8

5+2x equal to 8

2x equal to 3

x equal to 3/2

Value of x is 1.5m