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Published byChristian Kilgore Modified over 3 years ago

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Objective: Know the sum of angles at a point, on a straight line and in a triangle. Vocabulary:

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90 0

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40 0 ?0?0 50 0

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180 0

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50 0 ?0?

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360 0

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= – = 215 0

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ruler

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The sum of the angles in a triangle is 180 0

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? = – = 45 0 ? = 45 0

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The sum of the angles in a triangle is ? = – = 40 0 ? = 40 0

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The sum of the angles in a triangle is ? = – = 73 0 ? = 73 0

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The sum of the angles in a triangle is ? = – = 45 0 ? = 45 0

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Thank you for your attention

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