The diagram below shows a square inside a regular octagon. the apothem of the octagon is 13.28 units. to the nearest square unit, what is the area of the shaded region?

The correct option is:  A.  463 square units.

Step-by-step explanation:

According to the given diagram, the side length of the regular octagon is 11 units.

So, the perimeter of the octagon

The apothem of the octagon is 13.28 units.

So, the area of the octagon:  

Now, the side length of the inside square is 11 units. So, the area of the square  

Thus, the area of the shaded region

answer: #1 ads up by 8 and i don't know #2