← Reference

Algorithms: cheat sheet

Angles and shapes · The words and methods from the lessons, with an example of each.

algorithm

A set of steps and decisions that gives the right result every time. Test it on one shape of every class.

ask the most specific question first\text{ask the most specific question first}

congruence algorithm

Ask the congruence tests first, then the similarity conditions, and end with a catch-all. Test on one pair of each kind, including SSA.

congruent?→similar?→not enough to tell\text{congruent?} \to \text{similar?} \to \text{not enough to tell}