Question

A rectangle has length xcm and width (x-1)cm. If the perimeter is 14cm,
Find the value of x.​

Answer 1

x = 4 cm

Step-by-step explanation:

Given that,

Length of a rectangle = x cm

Width = (x-1) cm

The perimeter of the rectangle = 14 cm

We need to find the value of x.

We know that,

Perimeter = sum of all sides

14 = 2(x+x-1)

7 = 2x-1

8 = 2x

x = 4

So, the value of x is equal to 4 cm.