[883]Unit 3 Test: Angles, Triangles & Polygons

Front

What is the sum of the interior angles of a triangle?

Back

The sum of the interior angles of a triangle is always 180 degrees.

Front

What is the measure of one interior angle of a regular polygon with n sides?

Back

Front

If two angles are supplementary, what is the relationship between their measures?

Back

Two angles are supplementary if the sum of their measures is 180 degrees.

Front

What are corresponding angles?

Back

Corresponding angles are angles that are in the same position on two parallel lines cut by a transversal.

Front

What is the measure of each interior angle of a regular decagon?

Back

Each interior angle of a regular decagon measures 144 degrees.

Front

What is the definition of similar triangles?

Back

Similar triangles are triangles that have the same shape but may differ in size; their corresponding angles are equal and their corresponding sides are in proportion.

Front

What is the relationship between alternate interior angles when two parallel lines are cut by a transversal?

Back

Alternate interior angles are equal when two parallel lines are cut by a transversal.

Front

Back

Front

What is the definition of a polygon?

Back

A polygon is a closed figure formed by a finite number of straight line segments that do not cross each other.

Front

What is the difference between acute, obtuse, and right angles?

Back

Acute angles measure less than 90 degrees, obtuse angles measure more than 90 degrees but less than 180 degrees, and right angles measure exactly 90 degrees.