Parallelogram

The parallelogram has sides lengths in the ratio 3: 4 and perimeter 2.8 meters. Determine the lengths of the sides.

Correct answer:

a =  0.6 m
b =  0.8 m

Step-by-step explanation:


4a = 3b
2.8 = 2(a+b)

4•a = 3•b
2.8 = 2•(a+b)

4a-3b = 0
2a+2b = 2.8

a = 3/5 = 0.6
b = 4/5 = 0.8

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