Geom ch 1 vocab 2024

Front

line

Back

made up of an infinite amount of points and extends in 2 directions infinitely (2 arrows)

Front

ray

Back

has 1 endpoint while the other side extends infinitely

Front

Fill in the blank: Angles 1 and 2 are ________ ?

Back

a linear pair

Front

What is the name of this polygon? Is it convex or concave?

Back

pentagon, convex

Front

complementary angles

Back

2 angles that always add to 90 degrees

Front

What is a polygon?

Back

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

Front

What is a convex polygon?

Back

A polygon where all interior angles are less than 180 degrees.

Front

What is a concave polygon?

Back

A polygon that has at least one interior angle greater than 180 degrees.

Front

What are vertical angles?

Back

Angles that are opposite each other when two lines intersect and are always congruent.

Front

What are adjacent angles?

Back

Two angles that share a common side and vertex but do not overlap.