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Mariana [72]
3 years ago
7

The rectangle below has a total perimeter of 125 cm:

Mathematics
1 answer:
Jlenok [28]3 years ago
6 0

A rectangle has four sides, two equal to the width and two equal to the length. So, the perimeter is

p = 2w+2l

If we know that the width is 5, and the perimeter is 125, we have

125 = 2\cdot 5 + 2l \iff 125 = 10+2l

In your case, the unkown is called x, but the concept is the same:

2x+10 = 125

where x is the length of the rectangle.

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Read 2 more answers
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