Answer:
B. 1395 square units.
Explanation:
We have been given an octagon. We are asked to find the area of the given regular octagon.
, where,
a = Apothem,
p = Perimeter.
Let us find apothem of octagon by multiplying 17 by 8.
![\text{Perimeter}=8* 17](https://img.qammunity.org/2020/formulas/mathematics/middle-school/ep29ja0t8ki0hc5dgxzn50lzpwiazsl8np.png)
![\text{Perimeter}=136](https://img.qammunity.org/2020/formulas/mathematics/middle-school/5hc5wyly0lo5f3af8psemvmwvv77tcnmfe.png)
Upon substituting our given values in area formula, we will get:
![\text{Area of octagon}=(20.52* 136)/(2)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/cyo00o1qi3u3h7lcn1en66tankjpffzpem.png)
![\text{Area of octagon}=(2790.72)/(2)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/dak7zzy6orhddvwkmwszj9i0tidztwfq09.png)
![\text{Area of octagon}=1395.36\approx 1395](https://img.qammunity.org/2020/formulas/mathematics/middle-school/m9t2pj9n57nhq8luv0fsius2b8jchj3sm7.png)
Therefore, the area of our given octagon is 1395 square units.