Question

4. State the angle sum property of a polygon.​

Answer 1

Answer:

the sum of all angles of a polygon=360°

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Answer 2

Answer:

for a polygon with 9 sides, the number of angles is 7. Therefore the sum of angles in a triangle shall be 7 × 180 = 1260° for a polygon with 8 sides, the number of angles is 6. Therefore the sum of angles in a triangle shall be 6 × 180 = 1080°