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Two exterior angles of a triangle equal 100° and 150°. Find all the interior angles

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  1. 31 May, 09:16
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    180°-100° = 80° (angle 1)

    180°-150° = 30° (angle 2)

    180°-80°-30° = angle 3

    angle 3 = 70°

    ∴ the interior angles are 80°, 30° and 70°
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