What is the width of the rectangle?

Question

The width of rectangle is 3/4 the length.

The perimeter is 252cm. What is the width of the rectangle?

Answer 1

length =L

width = W=(3/4)L =3L/4

perimeter=P=252 cm

 

2(length+width) = perimeter

2(L + W) =P

2(L + 3L/4)=252

 

2L +3L/2 =252

 

4L+3L=504

5L=504

L=504/5=100.8

width =w =(3/4)100.8 =75.6 cm