Question

the lenth of a rectangle is twice of it's breath.if it's perimeter is 48cm, find the dimensions of the rectangle

Answer 1

Let the width be a cm
Length = 2a

perimeter = 2(2a+a)
48 = 6a
a = 8

Width = 8 cm
Length = 16 cm

Answer 2

length=2x
breadth=x
perimeter=48


perimeter=2 (l+b)
48=2 (x+2x)
48=2x+4x
48=6x
48/6=x
24/3=x
8=x


therefore x=8..........