Question

3. what is the sum of all interior angles of a polygon with the following numbers of sides?
i) 3
ii) 5
iii) 9
iv) 12
v) n​

Answer 1

Answer:

the polygon with sides 3 is a triangle with the sum of its interior angles is 180degree with 5 sides is called a Pentagon with sum of interior angles as540degree and with 9sides is called as nonagon with its sum of interior angles as 1260degree and with 12 sides is called as dodecagon with its sum of interior angles as 1800degrees and with n sided polygon can be calculated by the formula (n-2)×180degree for any sided polygon which is 180n-360 the answer is in degrees