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 an acute triangle?

Back

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

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 an obtuse triangle?

Back

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

Front

How can you identify an isosceles acute triangle?

Back

An isosceles acute triangle can be identified by having two equal sides and all angles measuring 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 both 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 a triangle with all sides of different lengths and one angle greater than 90 degrees?

Back

This triangle is classified as a scalene obtuse triangle.

Front

How do you determine if a triangle is scalene?

Back

A triangle is scalene if all three of its sides are of different lengths.