Triangle Sum and Exterior Angle Theorem Practice

Front

What is the sum of the interior angles in a triangle?

Back

180 degrees.

Front

What type of triangle has all sides of equal length?

Back

Equilateral Triangle.

Front

What type of triangle has one angle greater than 90 degrees?

Back

Obtuse Triangle.

Front

What is the Triangle Sum Theorem?

Back

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

Front

What is an exterior angle of a triangle?

Back

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

Front

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

Back

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

Front

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

Back

Right Triangle.

Front

What is an Isosceles Triangle?

Back

A triangle with at least two sides of equal length.

Front

If a triangle has angles measuring 60 degrees, 60 degrees, and 60 degrees, what type of triangle is it?

Back

Equilateral Triangle.

Front

What is the measure of the third angle in a triangle if the other two angles are 50 degrees and 60 degrees?

Back

70 degrees.