Angle Relationships

Front

What are angle relationships?

Back

Angle relationships refer to the ways in which angles interact with each other, including complementary, supplementary, vertical, and adjacent angles.

Front

Define complementary angles.

Back

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

Front

Define 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

What is the sum of the interior angles of a triangle?

Back

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

Front

What are remote interior angles in a triangle?

Back

Remote interior angles are the two interior angles of a triangle that are not adjacent to a given exterior angle.

Front

If one angle of a triangle is 50 degrees, what is the sum of the other two angles?

Back

The sum of the other two angles is 130 degrees (180 - 50 = 130).

Front

What is the relationship between exterior angles and interior angles?

Back

An exterior angle of a triangle is equal to the sum of the two remote interior angles.

Front

How do you find the measure of an unknown angle in a triangle?

Back

To find the measure of an unknown angle in a triangle, subtract the sum of the known angles from 180 degrees.