Question

find the number of sides of a polygon the sum of whose interior angle is: (i) 720° (ii) 1620°(ii)10 right angles​

Answer 1

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

Answer 2

Answer:

This is your answer

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