## Example Questions

### Example Question #1 : How To Find The Length Of The Diagonal Of A Quadrilateral

A square has a length of .  What must be the length of the diagonal?      Explanation:

A square with a length of indicates that all sides are since a square has 4 equal sides.  Use the Pythagorean Theorem to solve for the diagonal.  ### Example Question #2 : How To Find The Length Of The Diagonal Of A Quadrilateral

If the rectangle has side lengths of and , what is the diagonal of the rectangle?      Explanation:

Use the Pythagorean Theorem to solve for the diagonal.    ### Example Question #3 : How To Find The Length Of The Diagonal Of A Quadrilateral In the parallelogram above, and . What is the length of the diagonal ?      Explanation:

In a parallelogram, the two diagonals bisect each other at their centers. Therefore, . To find , we set them equal to one another and solve.   Plugging this value back into both equations, then adding those values together, gives us our answer of  