Classifying Triangles

Front

What is an equiangular triangle?

Back

An equiangular triangle is a triangle in which all three angles are equal, each measuring 60 degrees.

Front

What is a scalene triangle?

Back

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

Front

What is an isosceles triangle?

Back

An isosceles triangle is a triangle that has at least two sides of equal length and the angles opposite those sides are equal.

Front

What is an equilateral triangle?

Back

An equilateral triangle is a triangle in which all three sides are of equal length and all three angles are equal, each measuring 60 degrees.

Front

What defines a right triangle?

Back

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

Front

What is an obtuse triangle?

Back

An obtuse triangle is a triangle that has one angle measuring greater than 90 degrees.

Front

What are the sides of a triangle?

Back

Front

How do you classify triangles based on angles?

Back

Triangles can be classified based on angles as acute (all angles < 90°), right (one angle = 90°), or obtuse (one angle > 90°).

Front

How do you classify triangles based on sides?

Back

Triangles can be classified based on sides as equilateral (all sides equal), isosceles (two sides equal), or scalene (all sides different).

Front

What is the sum of the angles in a triangle?

Back

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