Classifying Triangles and Triangle Sum Theorem FLASHCARD

Front

What is a scalene triangle?

Back

A scalene triangle is a triangle that has no congruent sides.

Front

What are the measures of the angles in an equilateral triangle?

Back

All angles in an equilateral triangle measure 60 degrees.

Front

What type of triangle has all angles equal?

Back

An equiangular triangle is a triangle where all angles are equal.

Front

How do you find the measure of the third angle in a triangle if two angles are known?

Back

To find the third angle, subtract the sum of the known angles from 180 degrees.

Front

What is an isosceles triangle?

Back

An isosceles triangle is a triangle that has at least two congruent sides.

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.

Front

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

Back

It is a right triangle.

Front

What is the relationship between the sides and angles in a triangle?

Back

In a triangle, the larger the angle, the longer the opposite side.

Front

What is a right triangle?

Back

A right triangle is a triangle that has one angle measuring 90 degrees.

Front

What is the definition of congruent angles?

Back

Congruent angles are angles that have the same measure.