Oakville is a vibrant residential town located in Southern Ontario, Canada and within the Greater Toronto Area. Founded in 1857, Oakville now has an estimated population of 187,300. Oakville is known for its lively shopping districts, dynamic arts community, scenic harbors, and abundant dining options.
Quadrantal angles (0, 90, 180, and 270 degrees), and the values of the sine, cosine, and tangent of each of these angles. From the trig lessons in the Algebr... Quadrantal angles (0, 90, 180, and 270 degrees), and the values of the sine, cosine, and tangent of each of these angles. From the trig lessons in the Algebra 2 course by Derek Owens.
1 The number of octagon diagonals is 20. 2  The sum of all interior angle = 1080 degrees. 3  Since the sides for an regular octagon are equal, the interior angle at each vertex is = $\frac{1080}{8}$ = 135 degrees. 4  The total exterior angle is 360 degrees.