Question

A polygon’s interior angle measures add up to 1260°. What kind of polygon is this?

Answer 1

answers - heptagon, hexagon, nonagaon, octagon

Answer 2

This sum, 1,260, is also the sum of the angles of all the triangles that make up the polygon, and which when divided by 180 (the sum of all angles of a triangle) equals 7 triangles. Add 2 to this number to get the amount of sides the polygon has, which is 9.
nonagon

Answer 3

thanks for the help!!:)

Answer 4

you're welcome