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?

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?

anonymous · Answer

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

anonymous · Answer

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

anonymous · Answer

No, what they want is 40 + 45.

anonymous · Answer

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

anonymous · Answer

I believe so.