A convex polygon has 7 sides and one angle at each vertex What is the sum of
the measure of its extenor angles?
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360 degrees

Step-by-step explanation:

You are given a convex polygon that has 7 sides and one angle at each vertex.

The sum of the measure of external angle of a polygon Inrespective of the number of sides of the polygon will always be equal to 360 degree.

Therefore, the sum of the measure of its exterior angles is 360 degrees

452,489 to the nearest thousand is 452,000