Question

find the number of sides in regular polygon it it's each interior angle is 1 160​

Answer 1

Answer:

Step-by-step explanation:

Each interior angle of regular polygon of n sides is given by  

180(n−2)/n degree

​

According to question

180(n−2)/n degree= 160 degree

​

  ⇒180(n−2)=160n

⇒180n−360=160n

⇒20n=360

⇒n=18

∴Number of sides =18