Classifying Triangles

Front

What is an equilateral triangle?

Back

A triangle with all three sides of equal length and all three angles measuring 60°.

Front

What is an isosceles triangle?

Back

A triangle with at least two sides of equal length and the angles opposite those sides are equal.

Front

What is a scalene triangle?

Back

A triangle with all sides of different lengths and all angles of different measures.

Front

What is a right triangle?

Back

A triangle that has one angle measuring exactly 90°.

Front

What is an acute triangle?

Back

A triangle where all three angles are less than 90°.

Front

What is an obtuse triangle?

Back

A triangle that has one angle measuring more than 90°.

Front

How do you classify triangles based on sides?

Back

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

Front

How do you classify triangles based on angles?

Back

Triangles can be classified as acute, right, or obtuse based on their angle measures.

Front

What is the sum of the angles in any triangle?

Back

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

Front

If a triangle has one angle of 90° and two equal sides, what type of triangle is it?

Back

It is a right isosceles triangle.