Classifying Triangles

Front

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

Back

Acute triangle.

Front

What are vertical angles?

Back

Vertical angles are angles that are opposite each other when two lines intersect, and they are always congruent (equal measures).

Front

In a triangle, if all three sides are of equal length, what type of triangle is it?

Back

Equilateral triangle.

Front

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

Back

Obtuse triangle.

Front

What is a scalene triangle?

Back

A scalene triangle is a triangle in which all three sides are of different lengths.

Front

What is the sum of the interior angles of any triangle?

Back

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

Front

What type of triangle has one right angle?

Back

Right triangle.

Front

If a triangle has two sides of equal length, what type of triangle is it?

Back

Isosceles triangle.

Front

What is the definition of congruent angles?

Back

Congruent angles are angles that have the same measure.

Front

How can you classify a triangle based on its sides?

Back

Triangles can be classified as equilateral, isosceles, or scalene based on the lengths of their sides.