Answer:
7
Explanation:
So to find this you know a square has 4 equal sides. The area is 49, and area is side length multiplied by side length. So what number multiplied by itself is 49? 7 x 7=49!
7 inches
area of square=l^2
49=l^2
=l
7=l
therefore the sides of a triangle is 7 inches.
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