1. RIGHT TRIANGLE PROPORTIONS
How many right triangles do you see?

2. Mean proportional (A.K.A. GEOMETRIC MEAN)
WHEN THE MEANS IN A PROPORTION ARE EQUAL.

3. There are 2 cases – you must be able recognize which to use and when
When an altitude is drawn to the hypotenuse of a right triangle, it divides the hypotenuse proportionally. Follow the formats on the following 2 pages when setting up your proportion.

4. The altitude Proportion
Use this format when you
have or are looking for the
altitude.

5. The leg proportion
Use either of these 2 formats when you have the leg or are looking for the leg (and the hypotenuse is involved):