Interior Angles of Triangles

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 one angle of a triangle is 90 degrees, what type of triangle is it?

Back

It is a right triangle.

Tags

CCSS.4.G.A.2

Front

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

Back

Each interior angle in an equilateral triangle measures 60 degrees.

Tags

CCSS.8.G.A.5

Front

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

Back

Subtract the sum of the known angles from 180 degrees.

Tags

CCSS.8.G.A.5

Front

What is 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

If two angles of a triangle are 70 degrees and 50 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 the relationship between the angles in a triangle?

Back

The angles in a triangle are related such that their sum is always 180 degrees.

Tags

CCSS.8.G.A.5

Front

What is the formula to calculate the missing angle in a triangle?

Back

Missing angle = 180 - (Angle 1 + Angle 2).

Tags

CCSS.8.G.A.5

Front

In a triangle, if one angle is 40 degrees and another is 100 degrees, what is the third angle?

Back

The third angle is 40 degrees.

Tags

CCSS.8.G.A.5

Front

What type of triangle has all angles less than 90 degrees?

Back

It is called an acute triangle.

Tags

CCSS.4.G.A.2