Each interrior anfle of a regular polgon is 144.the number of sides of the polygon is
(N-2)*180 is the sum of all interior angle of regular polygon
if we divide the above value by n then we get the each interior angle...n puts its value 144
finally we get n=10
Formula to find out the no: of sides of polygon when interior angle is given
n = [ 360/ (180 -A) ]
n -> no: of sides.
A -> given interior angle.
n = [ 360 / (180 - 144) ]
= 360 / 36
= 10 .
(formula source : Google).
Good question Deepika.
I haven't seen this type of qstn.