Question

find the number of sides of a regular polygon if each interior angle of the polygon is 178

Answer 1

$\huge \maltese\: { \underline{ \underline{ \sf{ {Answer}}}}}$

$=180- \frac{360}{n}=162$

=180n-162n=162n

=180n-162n=360

=18n=360

$=n= \frac{360}{18}$

$\large \: n=20$