For a 30 sided regular polygon, We can divide the polygon (30 sides) into 30 inscribed triangles with central vertex angles of = .
This central vertex angle of <u>12 degrees</u> is the degree of rotation for a 30 sided polygon.
In other words, the 30 sided polygon has <u>12 degree</u> rotational symmetry about the center.
The measure of ∠BEC would be 80 degrees
Answer:
4 +9x+2
Step-by-step explanation:
You combine the terms, the x terms and the constants (the terms without variable/letters)