Question

Sum of exterior angles in a polygon is
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Answer 1

Answer:

1. the sum of exterior angles in a polygon 360 degree the formula of calculating the size open exterior angle in a regular polygon is 360°. if you know the exterior angle using the formula, interior angle+exterior angle=180°

Answer 2

Answer:

360 is the answer

Step-by-step explanation:

From the above triangle, the exterior angles Y and R make up a linear pair.( Y + R = 180°). And this gives, Y = 180° - R.

Sum of all three exterior angles of the triangle:

Y + R + Y + R + Y + R = 180° + 180° + 180°

3Y + 3R = 540°

Sum of interior angles of a triangle:

R + R + R = 180°

3R = 180°.

Substituting this in the above equation:

3Y + 180° = 540°

3Y = 540° - 180°

3Y = 360°

Therefore the Sum of exterior angles = 360°