Question

maths answer plz...........​

Answer 1

Answer:

1. sum of the measure of all the exterior angles of any polygon, irrespective of its no. of sides is always 360°

2.the sum of the measures of the interior angle of any polygon is the no. of sides minus 2 multiplied by 180. A polygon with 18 sides has an interior angle sum of 2880°

4. the formula for the sum of interior angles is S =(n-2)*180. Therefore,1980°=(n-2)*180. or (n-2)=1980/180=11

5. 156°

each angle 10.4