SOLUTION: the length of a triangle is twice the width. The perimeter is 84 centimeters more than the width. Find the rectangles dimensions. Please help. How do you find this out without kno

Algebra ->  Equations -> SOLUTION: the length of a triangle is twice the width. The perimeter is 84 centimeters more than the width. Find the rectangles dimensions. Please help. How do you find this out without kno      Log On


   



Question 221103: the length of a triangle is twice the width. The perimeter is 84 centimeters more than the width. Find the rectangles dimensions. Please help. How do you find this out without knowing the perimeter. Thank you.
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
P=2w+2l
84=2x+2(2x)
84=6x
x=14 cm
2x=28 cm