# Squaring a Rectangle

Here is a very interesting construction problem: Suppose you are given a rectangle. How can your construct a square whose area equals the area of the given rectangle using straightedge and compass? This problem is called " . Therefore, the problem boils down to "how can we construct a line segment of length if we are given the line segments of length a and b?"
Take a look at the following diagram to get an idea on how to solve it ...

**squaring a rectangle**". We can rephrase the problem as follows: Let a, b be the width and height of the given rectangle. Then the required square must have the side**Question**: You can drag the blue points to change the values of a and b. Can you express c in term of a and b?

**Hint**: Use similar triangles.

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