Geometry Fall Semester Exam

Front

What is an acute triangle?

Back

A triangle where all three angles are less than 90 degrees.

Front

What are alternate interior angles?

Back

Angles that are on opposite sides of a transversal and inside the two lines it intersects.

Front

What is a right angle?

Back

An angle that measures exactly 90 degrees.

Front

What is an obtuse angle?

Back

An angle that measures more than 90 degrees but less than 180 degrees.

Front

What is a ray in geometry?

Back

A part of a line that starts at a point and extends infinitely in one direction.

Front

What are vertical angles?

Back

Angles that are opposite each other when two lines intersect; they are always equal.

Front

How do you classify angles based on their measures?

Back

Angles can be classified as acute (< 90°), right (= 90°), or obtuse (> 90°).

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 a transversal in geometry?

Back

A line that intersects two or more lines at different points.

Front

What is the difference between same side interior angles and alternate interior angles?

Back

Same side interior angles are on the same side of the transversal and between the two lines, while alternate interior angles are on opposite sides of the transversal.