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Published byVictoria Riley Modified over 3 years ago

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Triangles By Christine Berg Edited By VTHamilton

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Triangles Can be classified by the number of congruent sides

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Scalene Triangle Has no congruent sides

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Isosceles Triangle Has at least two congruent sides

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Equilateral Triangle Has three congruent sides

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Triangles Can be classified by the angle measures

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Right Triangle Has one right angle

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Acute Triangle Has three acute angles

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Obtuse Triangle Triangle with one obtuse angle

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Triangles Cut any shape triangle out of a sheet of paper

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Triangles Tear off the corners. Piece them together by having the corners touch.

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Triangles The corners form what type of angle?

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Triangles The sum of the angles of a triangle is 180 degrees

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Triangles To find a missing angle, add up the 2 given angles

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Triangles Subtract the sum from 180 and you have the missing angle

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Congruent Triangles

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Have the same SIZE and the same SHAPE

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Congruent Triangles May be flipped and/or rotated

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Congruent Triangles BE CAREFUL WHEN YOU NAME THE SHAPE

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Congruent Triangles Name congruent CORRESPONDING parts (sides and angles) IN ORDER

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Congruent Triangles Make sure the letters are in CORRESPONDING order

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ABC is congruent to DEF A B C D E F

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One for you Name the congruent triangles remembering to name the angles in order X Y D E F Z

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