What does the suffix -able mean?

a flat shape that has five sides and five corners

likely to change in a very sudden or extreme way; having or showing extreme or sudden changes of emotion; likely to become dangerous or out of control

able to be managed, controlled, or accomplished without great difficulty

What does the root word "tri" mean?

a US customary unit of measurement for liquids; four of these equals a gallon!

What does the root word -ible mean?

of or relating to ordinary citizens and their concerns, as distinct from military or exxlesiastical matters; coureous and polite

suitable or safe to eat

What does the root word quad mean?

a long-distance race that has three parts; swimming, bicycling, and running

a series of three novels, movies, etc., that are closely related and involve the same characters or themes