Question

A regular octagon and a regular nonagon share a side, as shown in the image below. the measure of x, the angle between a side of the octagon and a side of the nonagon?

Answer 1

in an octagon the external angle is 360 / 8 = 45, internal is then 135
n an nonagon the external angle is 360 / 9 = 40, internal is then 140

Answer 2

http://tinypic.com/r/34sj9n4/6 That is the image , is that still the correct answer?

Answer 3

No, what they want is 40 + 45.

Answer 4

So the answer is 40+45? I have to write a numerical answer in a box

Answer 5

I believe so.