51, Naming Triangles Using Their Sides

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5-1, Naming Triangles Using Their Sides

• Objectives
• Identify triangles as equilateral, isosceles, or
  scalene
• Construct triangles

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Equilateral Triangles

• A triangle with three equal sides

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Isosceles Triangle

• A triangle with two equal sides

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Scalene Triangle

• A triangle with no equal sides

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5-2, Naming Triangles Using Their Angles

• Objectives
• Identify triangles as acute, right, or obtuse
• Construct right or obtuse triangles

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Acute Triangles

• A triangle whose angles are all less than 90º

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Right Triangles

• A triangle having one right angle (90º)

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Obtuse Triangles

• A triangle having one angle greater than 90º