Bunuel, can you help me with this question? I am not sure if this is a GMAT type question.
What is the value of x in the octagon?
I'm assuming that this is a regular octagon. This can be divided into 8 congruent triangles.
So the measure of the angles around the center = 360 degrees
There can be 8 triangles around the center and the measure of the apex angle, q for each triangle will be equal.
Hence each apex angle, q = 360/8 = 45
Hence, measure of angle x = 180 - 45 = 135 degrees.
Answer is D.
Octagon.JPG [ 39.32 KiB | Viewed 938 times ]