Question

find the sum of interior angles of nonagon​

Answer 1

Answer:

Step-by-step explanation:

To find the sum of the interior angles of a nonagon, divide it up into triangles... There are seven triangles...  Because the sum of the angles of each triangle is 180 degrees...  We get

7.180 degree =  1260 degree

So, the sum of the interior angles of a nonagon is 1260 degrees

Answer 2

Answer:

The sum of the interior angles of a nonagon is 1260°

Step-by-step explanation:

All sides are the same length (congruent) and all interior angles are the same size (congruent). To find the measure of the angles, we know that the sum of all the angles is 1260 degrees (from above)