Classifying Triangles by Sides

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

• equilateral, right, isosceles

• scalene, obtuse, right

• equilateral, isosceles, scalene

• acute, right, isosceles

What type of triangle is this?

• Equilateral
• Isosceles
• Scalene
• Obtuse

What type of triangle is this?

• scalene
• acute
• equilateral
• isosceles

• Equilateral Triangle
• Scalene Triangle
• Isosceles Triangle
• Right Triangle

What type of triangle is this?

• Scalene

• Isosceles

• Equilateral

Which type of triangle is pictured?

• Equilateral

• Isosceles

• Scalene

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

Which triangle is an equilateral triangle?

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Which triangle is an scalene triangle?

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Which triangle is an isosceles triangle?

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