Interior and Exterior Angles of Triangles

Front

What is the Triangle Sum Theorem?

Back

The Triangle Sum Theorem states that the sum of the interior angles of a triangle is always 180°.

Tags

CCSS.8.G.A.5

Front

If one angle of a triangle measures 70°, what is the sum of the other two angles?

Back

The sum of the other two angles is 110°.

Tags

CCSS.8.G.A.5

Front

What is the measure of each angle in an equilateral triangle?

Back

Each angle in an equilateral triangle measures 60°.

Tags

CCSS.8.G.A.5

Front

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

Back

To find the measure of a missing angle, subtract the sum of the known angles from 180°.

Tags

CCSS.8.G.A.5

Front

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

Back

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

Tags

CCSS.8.G.A.5

Front

If one angle of a triangle is 120°, what is the maximum possible measure of the other two angles?

Back

The maximum possible measure of the other two angles is 30° each.

Tags

CCSS.8.G.A.5

Front

What is the measure of an exterior angle if the two remote interior angles are 45° and 55°?

Back

The measure of the exterior angle is 100°.

Tags

CCSS.8.G.A.5

Front

In a triangle, if two angles are equal, what type of triangle is it?

Back

It is an isosceles triangle.

Tags

CCSS.4.G.A.2

Front

What is the measure of the third angle in a triangle if the other two angles are 38° and 104°?

Back

The measure of the third angle is 38°.

Tags

CCSS.8.G.A.5

Front

How do you calculate the measure of an angle when given the measures of the other two angles?

Back

Subtract the sum of the two known angles from 180°.

Tags

CCSS.7.G.B.5