Q1, HW #16 - Unit 1 Review - Geometry Basics

Front

What is a line that extends infinitely in both directions?

Back

A line is a straight one-dimensional figure that has no thickness and extends infinitely in both directions.

Front

What are complementary angles?

Back

Complementary angles are two angles whose measures add up to 90 degrees.

Front

What are supplementary angles?

Back

Supplementary angles are two angles whose measures add up to 180 degrees.

Front

What are vertical angles?

Back

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

Front

What are adjacent angles?

Back

Adjacent angles are two angles that share a common side and a common vertex but do not overlap.

Front

How do you denote a line segment in geometric notation?

Back

Front

What is the symbol for a ray in geometric notation?

Back

A ray is denoted with an arrow on one end, for example, @@ ightarrow{AB}@@.

Front

What is the sum of the measures of angles in a triangle?

Back

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

Front

What is the relationship between adjacent angles formed by two intersecting lines?

Back

Adjacent angles formed by two intersecting lines are supplementary.

Front

What is the definition of a polygon?

Back

A polygon is a closed figure formed by a finite number of straight line segments.