Question

You need to construct a regular polygon. When you draw two sides, the interior angle created between them is 120°, illustrated below.



What will be the sum, in degrees, of the measures of the interior angles of this polygon when it is completed?

Answer 1

The sum of the interior angles of any convex n-gon (polygon with n sides) is given by (n-2)*180.

Answer 2

so its 1080° ?1

Answer 3

Sorry, I just realized what I wrote, while true probably wasn't all that helpful....How many sides would your polygon have if the internal angle of all the corners was 120 degrees?

Answer 4

Hint: A regular hexagon has internal angles of 120 degrees. So if you use the formula I gave you above, what would the sum be?

Answer 5

380? ????

Answer 6

no. How many sides does a hexagon have?

Answer 7

6

Answer 8

so the sum of angles =(n-2)*180 where n is the number sides or =4(180)

Answer 9

would that be 720?

Answer 10

which one is right?