Geometry Review 1

Front

What is a vertex in geometry?

Back

A vertex is a point where two or more lines or edges meet. In the context of angles, it is the point where the sides of the angle intersect.

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

If two angles are complementary, what is their relationship?

Back

Two angles are complementary if their sum is equal to 90 degrees.

Front

What is the measure of the third angle in a triangle if the other two angles are 60° and 100°?

Back

The measure of the third angle is 20°.

Front

What do we call angles that add up to 180 degrees?

Back

Angles that add up to 180 degrees are called supplementary angles.

Front

What is an angle bisector?

Back

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

Front

Back

The measures of the two angles formed are both 49°.

Front

What is the definition of a ray in geometry?

Back

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

Front

What is the difference between a line and a line segment?

Back

A line extends infinitely in both directions, while a line segment has two endpoints.

Front

What is a triangle?

Back

A triangle is a polygon with three edges and three vertices.