Square side enlargement

If we enlarge the side of the square by half, its circumference will be 24 cm larger than the original. What is the side of the square?

Final Answer:

a =  12 cm

Step-by-step explanation:


4(a+a/2) = 24 + 4a

4·(a+a/2) = 24 + 4·a

4a = 48


a = 48/4 = 12

a = 12

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