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Published byMillicent Andrews Modified over 4 years ago

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Equilateral, Isosceles, Scalene, Right, Acute, Obtuse Types of Triangles

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Classified by side lengths Triangles are classified by their congruent sides A triangle will be equilateral, isosceles, or scalene

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Equilateral Triangles All three sides have same length All angles measure 60 degrees, always

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Isosceles Triangles Two sides are equal in length Only two angles have same measure Isosceles, two E's, two congruent sides

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Scalene Triangles No sides are equal No angles are equal in measure Weird name, weird looking

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Classified by angle measures Triangles are classified by the measures of their angles A triangle will be right, acute, or obtuse

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Right Triangles One angle must measure 90 degrees 90 degree angle is called a right angle

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Acute Triangles All angles measure less than 90 degrees Its angles are so small, isn't is a cute one?

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Obtuse Triangles One angle measures greater than 90 degrees Cannot have more than one angle greater than 90 degrees

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Remember This... A triangle has 3 sides 3 angles are made where the sides connect The angles total to 180 degrees; no more, no less The area can be found by taking 1/2 of the base times the height

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The End

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