Identifying Triangles

Front

What is an Acute Triangle?

Back

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

Front

What is an Obtuse Triangle?

Back

A triangle that has one angle greater than 90 degrees.

Front

What is an Equilateral Triangle?

Back

A triangle where all three sides are equal in length and all angles are 60 degrees.

Front

What is an Isosceles Triangle?

Back

A triangle that has at least two sides of equal length.

Front

How many sides does a triangle have?

Back

3 sides.

Front

What is a Scalene Triangle?

Back

A triangle where all three sides are of different lengths.

Front

What is the sum of the angles in a triangle?

Back

180 degrees.

Front

Can a triangle have two obtuse angles?

Back

No, a triangle can only have one obtuse angle.

Front

What defines an Acute Isosceles Triangle?

Back

An isosceles triangle where the two equal angles are less than 90 degrees.

Front

What defines an Obtuse Isosceles Triangle?

Back

An isosceles triangle where one angle is greater than 90 degrees.