measure of exterior angle of triangle is equal to sum of interior angles.
for eg.
In triangle ABC,
angle C is exterior angle
angle A and angle B are interior angles
so, C=A+B
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An interior angle of a triangle is the angle between two edges, measured inside the triangle. An exterior angle is formed by extending one of the edges outside the triangle, and measuring between that extension and the adjacent original side of the triangle. The sum of the interior angle and exterior angle at any given corner is always 1800 (which is Pi radians).
The largest exterior angle measure is 120o. It is the exterior measure of an equilateral triangle (which is a regular polygon).
No.Take a look at this picture...http://www.onemathematicalcat.org/Math/Geometry_obj/graphics/summing_exterior_angles.pngThe exterior angle + the interior angle = 180 degrees180 - the interior angle = the exterior angle
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