since regular polygon has same sides, the perimeter of other sides are also 6cm
i found out there are 9 sides. so if question A is asking the perimeter of the whole sides except the one mentioned it will be 6cm×8 = 48cm
for question B
[tex]use \: the \: formula \: area = \frac{a \times p}{2} [/tex]
the answer is 222.55cm squared