Interior and Exterior Angles

Front

What is an exterior angle?

Back

An exterior angle is formed by one side of a polygon and the extension of an adjacent side. In a triangle, it is equal to the sum of the two remote interior angles.

Tags

CCSS.8.G.A.5

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.

Tags

CCSS.8.G.A.5

Front

If two angles of a triangle are 50 degrees and 70 degrees, what is the measure of the third angle?

Back

The third angle measures 60 degrees.

Tags

CCSS.8.G.A.5

Front

What is a corresponding angle?

Back

Corresponding angles are pairs of angles that are in similar positions at each intersection where a straight line crosses two others.

Tags

CCSS.8.G.A.5

Front

What is an interior angle?

Back

An interior angle is an angle formed inside a polygon by two adjacent sides.

Front

If angle d is 120 degrees, what are the measures of the remote interior angles?

Back

The remote interior angles are the angles that are not adjacent to angle d, and their sum is 60 degrees.

Tags

CCSS.8.G.A.5

Front

What is the relationship between exterior angles and interior angles in a triangle?

Back

The exterior angle of a triangle is equal to the sum of the two opposite interior angles.

Tags

CCSS.8.G.A.5

Front

Solve for x: 2x + 10 = 30.

Back

x = 10.

Tags

CCSS.7.EE.B.4A

Front

What is the measure of an angle that is supplementary to a 75-degree angle?

Back

The supplementary angle measures 105 degrees.

Tags

CCSS.7.G.B.5

Front

If angle a + angle b = angle d, what can you say about angles a and b?

Back

Angles a and b are the interior angles that add up to the exterior angle d.

Tags

CCSS.7.G.B.5