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What is the sum of the measures of the angles of this 9-sided polygon?

1080
1260
1440
1620​

What is the sum of the measures of the angles of this 9-sided polygon? 1080 1260 1440 1620​-example-1

2 Answers

5 votes
Add all the sides.
It will help.
User Chavi
by
4.9k points
6 votes

Answer:

1260

Explanation:

Sum of all the angles of a polygon = (n - 2)*180

Sum of all the angles of a 9-sided polygon = (9-2)*180

= 7 * 180 = 1260

User Daniel Park
by
4.9k points