Classifying Triangles Sides

What type of triangle is this?

• Equilateral

• Isosceles

• Scalene

• Obtuse

Look at the triangle pictured. 
What do the lines (sticks) mean on a shape?

• The lines (sticks) show sides that are equal

• The lines (sticks) show sides that are not equal

What are the three ways to classify triangles by their sides?

• equilateral, right, isosceles

• scalene, obtuse, right

• equilateral, isosceles, scalene

• acute, right, isosceles

A triangle can be classified as an isosceles triangle if there are two equal sides.

• True

• False

What does the term scalene mean?

• all sides equal

• two sides equal

• 90 degree angle

• all sides not equal

Which triangle is an scalene triangle?

• 
• 
• 

What kind of triangle is this?

• equilateral

• isosceles

• scalene

What kind of triangle is this?

• scalene

• equilateral

• isosceles

What kind of triangle is this?

• acute

• obtuse

• right

Classify the triangle by its sides.

• Equilateral

• Isosceles

• Scalene