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faltersainse [42]
3 years ago
8

A rectangle's length is twice its width. if the perimeter is 120 cm, find the width of the rectangle.

Mathematics
1 answer:
dangina [55]3 years ago
4 0
Let's use the formula to find the perimeter of a rectangle.
2l+2w=120
We know that the length is twice its width; the equation would be:L=2w
We can plug that in to the formula.
2(2w)+2w=120
4w+2w=120
6w=120
120÷6=20=w
Since the length is twice its width, 20×2=40. The length is 40 cm.
The width is 20 cm.
Tell me if this helps!!
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