Rhombus

If we increase the rhombus side by 2.4 cm, its perimeter is 20 cm. How long was the side of the rhombus?

Correct answer:

a =  2.6

Step-by-step explanation:


4·(a+2.4)=20

4a = 10.4


a = 10.4/4 = 2.6

a = 13/5 = 2.6

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