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.
This means that the triangles are all identical, and are the angles (or the triangle) adjacent to the side of the octagon are equal. Since the sum of the angles of a triangle is 180 degrees, each of them measures (180-45)/2 degrees. Since each interior angle of the octagon is comprised of two angles whose measure we just calculated above, each of them measures 180-45 = 135 degrees. It looks as if elbow pieces that measure 45 degrees won't work.