Rectangles: What is the length?

label Mathematics
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A rectangle has a perimeter of 14 inches. A similar rectangle has a perimeter of 10 inches. If the length of the larger triangle is 4 inches, what is the length of the smaller rectangle? Round to the nearest tenth.

Apr 26th, 2015

Use Ratios

14:10, so ratio is 7:5

7 = 4

5 = ?

? = 5/7 x 4

    = 2.86 inches

Apr 26th, 2015

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Apr 26th, 2015
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Apr 26th, 2015
Sep 19th, 2017
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