Interior and Exterior Angles of a Triangle

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

What is an exterior angle of a triangle?

Back

An exterior angle of a triangle is formed by one side of the triangle and the extension of an adjacent side.

Front

How do you calculate an exterior angle of a triangle?

Back

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

Tags

CCSS.8.G.A.5

Front

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

Back

The exterior angle is equal to the sum of the two non-adjacent interior angles.

Tags

CCSS.8.G.A.5

Front

If one interior 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).

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 degrees.

Tags

CCSS.8.G.A.5

Front

What is the measure of the missing angle if two angles of a triangle are 70 degrees and 40 degrees?

Back

The missing angle measures 70 degrees (180 - 70 - 40 = 70).

Tags

CCSS.8.G.A.5

Front

What is the formula for finding the measure of an interior angle in a regular polygon?

Back

The formula is (n-2) * 180/n, where n is the number of sides.

Front

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

Back

In a right triangle, the sum of the two non-right angles is 90 degrees.

Tags

CCSS.7.G.B.5

Front

What is the definition of complementary angles?

Back

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

Tags

CCSS.7.G.B.5