You can put this solution on YOUR website! Better wording would be: What is the area of a square inscribed in a circle whose radius is 8 inches? If this is your problem then , the picture looks like:
Since the area of a square is the square (hence the term) of the side, we need to find the side of the square. As I hope you can see, finding the leg of the right triangle will help us find the side of the square.
In all 45-45-90 triangles the ratio of the hypotenuse to a leg is . In the 45-45-90 right triangle shown, the hypotenuse is 8. Substituting this into the ratio we can find the leg (using x for leg because "l" can be confused with "1"):
Multiplying both sides by x
Divide both sides by sqrt(2):
Now the leg, x, is 1/2 of the side of the square, s. So the side of the square is twice as much: square inches.
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