Classifying Triangles and Triangle Sum Theorem FLASHCARD

Front

What are the three types of triangles based on side lengths?

Back

Equilateral, Isosceles, and Scalene.

Front

What are the three types of triangles based on angle measures?

Back

Acute, Right, and Obtuse.

Front

What is the Triangle Sum Theorem?

Back

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

Front

What type of triangle has all sides of equal length?

Back

Equilateral triangle.

Front

What type of triangle has at least two sides of equal length?

Back

Isosceles triangle.

Front

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

Back

Acute triangle.

Front

What type of triangle has one angle measuring exactly 90 degrees?

Back

Right triangle.

Front

What type of triangle has one angle measuring more than 90 degrees?

Back

Obtuse triangle.

Front

If two angles in a triangle are 45 degrees and 75 degrees, what is the measure of the third angle?

Back

60 degrees.

Front

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

Back

60 degrees.