an exterior angle of a tringle of measure 80*and one of its opposite interior angle is of measure 30*. find the measure of other angles of the traingle. also write the name of traingle(acute or obtuse or right traingle.
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interior angles = 30
exterior angles = 80
so other angles = 80 - 30 (sum of two interior angles equal to the exterior angles)
=50
acute angles
exterior angles = 80
so other angles = 80 - 30 (sum of two interior angles equal to the exterior angles)
=50
acute angles
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exterior angle=80°
therefore the interior angle=80°-30°=50°
therefore, the triangle is acute
therefore the interior angle=80°-30°=50°
therefore, the triangle is acute
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