find the number of sides of a polygon the sum of whose interior angle is: (i) 720° (ii) 1620°(ii)10 right angles
Share
find the number of sides of a polygon the sum of whose interior angle is: (i) 720° (ii) 1620°(ii)10 right angles
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Answer:
1)(2n-4)90=720
180n-360 =720
I80n=1080
n = 1080/180=6. . Ans
2)(2n-4) 90=1620
180n-360 =1620
180n=1980
n = 1980/180=11. Ans
3) (2n-4)x90=10x90
180n-360 = 900
180 n = 1260
n = 1260 / 180=7. Ans