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 Scalene Triangle No sides congruent  Isosceles Triangle Exactly 2 sides congruent  Equilateral Triangle All sides congruent.

Published byBetty Randall Modified over 8 years ago

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Presentation on theme: " Scalene Triangle No sides congruent  Isosceles Triangle Exactly 2 sides congruent  Equilateral Triangle All sides congruent."— Presentation transcript:

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2  Scalene Triangle No sides congruent  Isosceles Triangle Exactly 2 sides congruent  Equilateral Triangle All sides congruent

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4  When the sides of a polygon are extended, other angles are formed. The original angles are the interior angles. The angles that form linear pairs with the interior angles are the exterior angles

5 Triangle Sum Theorem: The sum of the measures of the interior angles of a triangle is 180°. Exterior Angle Theorem: The measure of an exterior angle of a triangle is equal to the sum of the measures of the two nonadjacent interior angles.

6 Find the measure of angles BAC and BCA. Find the measure of angles BCD and ABC.

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