find the no. of sides in a regular polygon ,the sum of whose interior angles is 1620
bharat9291:
use the formula (n-2) *180 = 1620
n = 11 sides
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sum of all interior angle = ( n - 2) × 180
1620 = 180n - 360
1620 +360 =180n
1980 = 180n
n = 1980/180
= 11
I hope you understand. ...
1620 = 180n - 360
1620 +360 =180n
1980 = 180n
n = 1980/180
= 11
I hope you understand. ...
thank you so much
it's ok
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