Triangle Sum/Exterior Angle

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 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 the third angle in a triangle if the first two angles are 34 degrees and 101 degrees?

Back

45 degrees.

Tags

CCSS.8.G.A.5

Front

What is the formula to find the measure of an exterior angle of a triangle?

Back

The 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 30 degrees and 70 degrees, what is the measure of the third angle?

Back

80 degrees.

Tags

CCSS.8.G.A.5

Front

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

Back

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

Tags

CCSS.8.G.A.5

Front

How do you find the value of x in a triangle when given two angles?

Back

Subtract the sum of the two angles from 180 degrees.

Tags

CCSS.8.G.A.5

Front

What is an acute triangle?

Back

A triangle where all three angles are less than 90 degrees.

Tags

CCSS.4.G.A.2

Front

What is an obtuse triangle?

Back

A triangle where one angle is greater than 90 degrees.

Tags

CCSS.4.G.A.2

Front

What is a scalene triangle?

Back

A triangle where all three sides and all three angles are different.

Tags

CCSS.4.G.A.2