Find the length of the unknown sides
What are the length and width of a rectangle that has a perimeter of 60cm and a length 2 times the width?

Respuesta :

Answer:

L = 20 cm, W = 10cm

Step-by-step explanation:

P=2L+2W

P=60,L=2W

60 = 2(2W)+2W

60=4W+2W

60=6W

W=10

plug in L=2W

L=2x10

L=20