Question

Find the area of the

Answer 1

Answer:

Option C : 173.8 km² is the correct answer.

Step-by-step explanation:

Given that:

Side length = 6 kilometers

A shape with 8 sides is called an octagon, therefore, the given figure is an octagon.

Area of octagon is given by;

Area = $2(1+\sqrt{2})a^2$

Putting a=6

Area = $2(1+\sqrt{2})(6)^2$

Area = $(2+2\sqrt{2})(36)$

Area = 173.82

Rounding off to one decimal place

Area = 173.8 km²

Hence,

Option C : 173.8 km² is the correct answer.