The sum of all angles in a regular octagon is 1080 degrees. Because all sides are the same (regular octagon), all of the eight angles are the same too, so we simply divide 1080 by 8 and that is the solution.
1080/8 = 135
Answer:
cot(x)
Step-by-step explanation:
![cot\theta(sin^2\theta+cos^2\theta)](https://tex.z-dn.net/?f=cot%5Ctheta%28sin%5E2%5Ctheta%2Bcos%5E2%5Ctheta%29)
![cot\theta(1)](https://tex.z-dn.net/?f=cot%5Ctheta%281%29)
![cot\theta](https://tex.z-dn.net/?f=cot%5Ctheta)
Recall the Pythagorean Identity ![sin^2x+cos^2x=1](https://tex.z-dn.net/?f=sin%5E2x%2Bcos%5E2x%3D1)
The last one you’re correct , 16 is a perfect example of a perfect square
I think it’s B) 30 degrees