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ExtremeBDS [4]
3 years ago
15

The length of a rectangle it twice it's within. If the perimeter of the rectangle is 30 cm, find its area.

Mathematics
1 answer:
Xelga [282]3 years ago
6 0

w - width

2w - length (l)

30 cm - perimeter

w + w + 2w + 2w = 6w - perimeter

The equation:

6w = 30    <em>divide both sides by 6</em>

w = 5 cm

2w = 2(5) = 10

l = 10 cm

The area of a rectangle: A = lw.

Substitute:

A = (5)(10) = 50

<h3>Answer: The area is 50cm²</h3>
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7 0
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This is how I would do it :)
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