SOLUTION: Given triangle ABC what is the sum of the supplements of all three exterior angles of the triangle?
Algebra.Com
Question 273651: Given triangle ABC what is the sum of the supplements of all three exterior angles of the triangle?
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
supplements add up to 180
let's take an isosceles triangle of 60 60 60
the supplements will be be 120 120 120 which add up to 360
360 is the sum of the supplements of the interior angles
but the question asks for the sum of the supplements of the exterior angles.
which means what is the sum of the interior angles which is 180
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