Question

how many sides does a regular polygon have it each exterior angle measures 40 degrees

Answer 1

Type your question in google.

When you see list of results go on :

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Answer 2

Recall that the sum of exterior angles of any polygon is equal to 360 degrees.
Therefore, we just divide 360 by 40 degrees to get the number of sides:
360/40 = 9 sides

hope this helps :)

Answer 3

good