Question

4. When the sides of a square is decreased by 3cm the area becomes 64cm2. Find the length of the sides
of the original square ?
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Answer 1

Answer:

We know that if the side is increased by 3 the area of the new square is 64cm2 . So we can write that: a≥0 because a is a geometrical dimension and they are never negative. The area of square with 3 cm longer sides is 64cm2 , so we can write (a+3)2=64

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