Unit 3 Study Guide - Triangles and Congruence

These flashcards cover key concepts related to triangles, their classifications, properties, congruence, and strategies for studying and test preparation.

A triangle with one right angle is called a __ triangle.

Right triangle.

A triangle with three congruent sides is called __.

Equilateral triangle.

In a triangle, if two angles are known, the __ theorem can be used to find the third angle.

Third angle theorem.

If a triangle has one obtuse angle, it is called an __ triangle.

Obtuse triangle.

Two polygons are congruent if they have the same and .

shape, size.

The sums of the interior angles of a triangle equal __ degrees.

180.

A triangle with no congruent sides is known as a __ triangle.

Scalene triangle.

The shortcut that can prove a triangle's congruency is known as __.

SSS (Side-Side-Side) congruency.

Proportional corresponding side lengths indicate that two triangles are __.

Similar.

The __ angle theorem states that exterior angles of a triangle equal the sum of the opposite interior angles.

Exterior angle theorem.

To reinforce my studying for the upcoming quiz, I plan to use __ to test my vocabulary knowledge.

Quizlet.

A strategy to manage my time better during tests is to __ my time on each section.

allocate.

If I struggle in understanding a concept, I will remember to __ for help.

reach out.