Question

The length of a rectangle is two times its width. If the perimeter is 84 m, then the length of rectangle is _________
12 m
63 m
22 m
24 m​

Answer 1

Given:-

• Rectangle's length is 2 times its width.
• The perimeter of rectangle is 84 m.

To Find:-

Length of rectangle.

Solution:-

Let width be 'x'

Let length be '2x'

So,

Perimeter of rectangle= $\scriptsize\boxed{2(length + bredth)}$

= 84 metres

84 metres = 2 (x + 2x)

84 metres = 2*3x

84/2 = 3x

42 = 3x

x = 42/3

x = 14

2x = 14×2 = 28

$\therefore$ The bredth of rectangle is 14 and length of rectangle is 28.

Answer 2

Answer:

length= 28 m

bredth= 14 m