Question

Please answer.Q 25 (a) and Q 27.

Answer 1

Ans is 30

Let's see how

No. Of sides = 360/180-each interior angle

No. Of sides=360/180-168

=360/12=30

No. Of sides of polygon=30 sides

Thank you!!!!!!!!!

Answer 2

$\: \: \: \: \: \: \: \: \: \: \: \frac{Your \: \: Answer}{}$

$Each \: \: interior \: \: angle \: = 168 °$

$Exterior \: \: angle \: = 180° - 168° \\ \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 12° \:$

$Let \: \: the \: \: number \: \: of \: \: sides \:\: be \: \: n \: .$

$Exterior \: \: angle \: = \frac{360}{n} \\ \\ = > 12 = \frac{360}{n} \\ \\ = > 12n = 360 \\ \\ = > n = \frac{360}{12} \\ \\ = > n = 30$

Hence, the number of sides is 30.

I hope it will help you