7th Grade IM unit 7 Vocab Sections A &B

Front

What are vertical angles?

Back

Opposite angles that share the same vertex and are equal.

Front

What is a vertex?

Back

A point where two or more edges, sides, or rays meet.

Front

What is the measure of a right angle?

Back

90 degrees.

Front

What is the measure of a straight angle?

Back

180 degrees.

Front

What is a unique triangle?

Back

A triangle that can only be made one way with specific conditions.

Front

What are complementary angles?

Back

Two angles that add up to 90 degrees.

Front

What are supplementary angles?

Back

Two angles that add up to 180 degrees.

Front

What is an acute angle?

Back

An angle that measures less than 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 right triangle?

Back

A triangle that has one right angle.