3.1 Classifying Triangles

Front

What type of triangle has all angles less than 90° and two equal sides?

Back

Acute Isosceles

Front

What kind of triangle has one angle equal to 90°?

Back

Right triangle

Front

What is an obtuse triangle?

Back

A triangle with one angle greater than 90°.

Front

In an acute triangle, what can you say about the angles?

Back

All three angles are less than 90 degrees.

Front

What type of triangle has all three sides of equal length?

Back

Equilateral triangle.

Front

What is a scalene triangle?

Back

A triangle with all sides of different lengths.

Front

How can you identify an isosceles triangle?

Back

It has at least two sides of equal length.

Front

What is the sum of the angles in any triangle?

Back

180 degrees.

Front

If a triangle has one angle greater than 90°, what type of triangle is it?

Back

Obtuse triangle.

Front

What type of triangle has one angle equal to 90° and two sides of different lengths?

Back

Right Scalene triangle.