4.1 Triangles &amp; Angles

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# 4.1 Triangles &amp; Angles - PowerPoint PPT Presentation

4.1 Triangles &amp; Angles. A Triangle. Is a figure formed by three segments Joining three noncollinear points ….it has Sides ….. And Angles. Triangles can be classified by sides. Scalene (no sides equal) Isosceles (as least 2 sides equal) Equilateral (3 congruent sides).

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## PowerPoint Slideshow about '4.1 Triangles &amp; Angles' - pello

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Presentation Transcript
A Triangle
• Is a figure formed by three segments
• Joining three noncollinear points….it has
• Sides…..
• And Angles.
Triangles can be classified by sides..
• Scalene (no sides equal)
• Isosceles (as least 2 sides equal)
• Equilateral (3 congruent sides)
A Triangle can be classified by ANGLES…
• Acute (3 acute angles)
• Right (1 right angle)
• Obtuse (1 obtuse angle)
• Equiangular (3 congruent angles)
Triangle Vocabulary
• Vertex A
• Vertex B
• Vertex C
Triangle Vocabulary
• Side opposite angle A
• Side oppositeangle B
• Side opposite angle C
Right Triangles
• Hypotenuse
• Leg
• Leg
• Interior Angles
• Exterior Angles