Classifying Triangles & Finding missing angles

Front

What is the sum of the interior angles of 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 type of triangle has two sides of equal length?

Back

Isosceles Triangle.

Front

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

Back

60 degrees.

Front

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

Back

Right Triangle.

Front

What is a triangle with three different side lengths called?

Back

Scalene Triangle.

Front

How do you find the missing angle in a triangle if two angles are known?

Back

Subtract the sum of the known angles from 180 degrees.

Front

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

Back

Acute Triangle.

Front

If a triangle has angles measuring 30 degrees and 60 degrees, what is the measure of the third angle?

Back

90 degrees.