Hi! :) 19.7 - 6.8 is 12.9. If you need anymore help, ask me!
Triangle FOD is an isosceles with base FD.
FD = 2 · 4 = 8
FD = CB
Arc CB = 56°
Arc ED = 1/2 Arc FD = 1/2 Arc CB
Arc ED = 56° : 2
Answer:
Arc ED = 28°
Figure out the representatvie for -x
Consider the attached figure. The height CD cuts the triangle exactly in half. This means that

Moreover, since CD is the height of the triangle, we know that ACD is a right triangle. We know the hypothenuse AC to be 20 feet because it is a side of the triangle, and we just found out that AD is 10. We can use the pythagorean theorem to deduce

So, the area is

Answer:
8.611111
Step-by-step explanation:
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