I am having problems with these questions can someone please help I tried to do it but I keep getting the wrong answer I know this because its multiple choice thanks!!

6. Find the area of a regular nonagon with a side length of 7 and an apothem of 5

a- 156.5

b- 157.0

c- 157.5

d- 158.0

7. Find the area of a regular nonagon with a side length of 9 and an apothem of 16

a- 651

b- 650

c- 649

d- 648

Question

I am having problems with these questions can someone please help I tried to do it but I keep getting the wrong answer I know this because its multiple choice thanks!!


6. Find the area of a regular nonagon with a side length of 7 and an apothem of 5

a- 156.5

b- 157.0

c- 157.5

d- 158.0

7. Find the area of a regular nonagon with a side length of 9 and an apothem of 16

a- 651

b- 650

c- 649

d- 648

phi · Answer

Area of Polygon = perimeter × apothem / 2