Classifying Triangles

Front

What is an isosceles triangle?

Back

An isosceles triangle is a triangle that has at least two sides of equal length.

Front

What defines a scalene triangle?

Back

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

Front

What is an acute triangle?

Back

An acute triangle is a triangle where all three interior angles are less than 90 degrees.

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 to 60 degrees.

Front

What is an obtuse triangle?

Back

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

Front

How can you identify an isosceles acute triangle?

Back

An isosceles acute triangle has two equal sides and all angles are less than 90 degrees.

Front

What is the relationship between the angles in a triangle?

Back

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

Front

Can a triangle be both isosceles and obtuse?

Back

Yes, a triangle can be isosceles and obtuse if it has two equal sides and one angle greater than 90 degrees.

Front

What is the difference between acute and obtuse triangles?

Back

Acute triangles have all angles less than 90 degrees, while obtuse triangles have one angle greater than 90 degrees.

Front

What is the classification of triangles based on side lengths?

Back

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