Question

The length of a rectangle is 3 times the
width. If the perimeter is 40 cm, find the
length and width.


help me please Pre-Algebra ​

Answer 1

Answer:L= 3W

Perimeter = 2(l+w) = 40

 

2(3w+w) = 40

 

2*4w = 40

8w =40

w = 5

l = 3*5 = 15

Hope I helped