Question

the length of rectangle is three times its width it's perimeter is 84 find its lenght of rectangle​

Answer 1

Answer:

please refer to the attachment.

please mark my answer as the brainliest.

please follow me.

Answer 2

Answer:

Given length is 3 times of its width

If width is x then length will be 3x

Given perimeter is 84cm

Perimeter of rect. =2(l+b) = 2(3x+x) = 2(4x) = 8x

8x = 84

x = 84/8 = 1.5cm

If x is 1.5cm then length will be 3x i.e 3×1.5= 4.5cm

HOPE IT IS CLEAR THNK U