Triangle Sum Theorem and Angle Review

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 if two angles of a triangle are 50 degrees and 60 degrees?

Back

The third angle measures 70 degrees, calculated as 180 - (50 + 60).

Tags

CCSS.8.G.A.5

Front

What is the relationship between the angles in an isosceles triangle?

Back

In an isosceles triangle, the angles opposite the equal sides are equal.

Tags

CCSS.HSG.CO.C.11

Front

If two angles of a triangle are 45 degrees each, what is the measure of the third angle?

Back

The third angle measures 90 degrees, calculated as 180 - (45 + 45).

Tags

CCSS.8.G.A.5

Front

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

Back

The formula is: Missing Angle = 180 - (Angle1 + Angle2).

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

How do you find the value of an unknown angle in a triangle?

Back

You can find the unknown angle by using the Triangle Sum Theorem: subtract the sum of the known angles from 180 degrees.

Tags

CCSS.8.G.A.5

Front

If one angle of a triangle is 30 degrees and another is 60 degrees, what is the value of the third angle?

Back

The third angle is 90 degrees, calculated as 180 - (30 + 60).

Tags

CCSS.8.G.A.5

Front

What is the sum of the angles in a triangle?

Back

The sum of the angles in a triangle is always 180 degrees.

Tags

CCSS.8.G.A.5