Question

A rectangle has a perimeter of 256cm and a length of 74cm. Its width is
3x cm. What will be the value of x?​

Answer 1

Answer:

Let side of square be 'a'

Area of square =a

2

Given a

2

=256

a=16

Perimeter of square =4a=4×16

=64cm.

Answer 2

Answer:

256 = 2(l+b)

256= 2( 74+3x)

256= 148+6x

256-148 = 6x

108 = 6x

108/6 = x

18 = x

hope you got it