Question

?! What can you say about the angle sun of convex polyeon with 10 sides.​

Answer 1

Answer:

So a 10 sided convex polygon (decagon) will have 8 triangles. Since each triangle has an angle sum of 180 degrees 8 triangles will have an angle sum of 8 X 180 = 1440 degrees. So this uses the formula (n-2)(180). ... 10 X 180 - 360 (for the sum of the exterior angles).