Mrs. Kim's Angles of Triangles

Front

What is the relationship between an exterior angle of a triangle and the two opposite interior angles?

Back

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

Front

If all three angles of a triangle are equal, what is the measure of each angle?

Back

Each angle measures 60 degrees.

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.

Front

If one angle of a triangle measures 79 degrees and another measures 43 degrees, what is the measure of the third angle?

Back

The third angle measures 58 degrees.

Front

Solve for x: If x + 85 = 180, what is x?

Back

x = 95.

Front

What is the measure of a right angle?

Back

A right angle measures 90 degrees.

Front

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

Back

It is a right triangle.

Front

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

Back

Each angle in an equilateral triangle measures 60 degrees.

Front

If a triangle has angles measuring 50 degrees and 60 degrees, what is the measure of the third angle?

Back

The third angle measures 70 degrees.

Front

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

Back

The formula is: Missing angle = 180 - (sum of the other two angles).