One of the exterior angles of a triangle is 100° and its interior angles are equal to each other. what is the measure of each of these two angles?
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Step-by-step explanation:
Interior angle
They are equal so !!
sum of Interior angle = 180
EACH ANGLE = 180 ÷3 = 60°
EXTERIOR ANGLES =
1st Angle = 100°
2nd angle = 180-60(linear pair) = 120°
3rd angle = 100 + 120 = 220
360(Sum of exterior angles) - 220 = 140°
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