Test Unit 1 Retake

Front

What is a ray?

Back

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

Front

What is the measure of a straight angle?

Back

180 degrees.

Front

What is an angle bisector?

Back

An angle bisector is a line or ray that divides an angle into two equal parts.

Front

What do we call the point where two lines intersect?

Back

The point of intersection.

Front

What is a line segment?

Back

A line segment is a part of a line that has two endpoints.

Front

What is the sum of the angles in a triangle?

Back

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

Front

What is a complementary angle?

Back

Two angles are complementary if the sum of their measures is 90 degrees.

Front

What is a supplementary angle?

Back

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

Front

What is a vertical angle?

Back

Vertical angles are the angles opposite each other when two lines intersect; they are always equal.

Front

What is a transversal?

Back

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