Question

form a exterior angle on every vertex of a triangle ​

Answer 1

Answer:

Exteriors angle formed at each vertex of a triangle are. Exteriors angle are equal to the sum of opposite interior angles . An exterior angle and its adjacent interior angle form a linear pair . So , Sum of an exterior angle of a triangle and its adjacent interior angle is 180 °

Answer 2

Step-by-step explanation:

●.An exterior angle of a triangle is formed when one side of a triangle is extended. The nonstraight angle (the one that is not just the extension of the side) outside the triangle, but adjacent to an interior angle, is an exterior angle of the triangle.

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