PLease help I do not know what I did wrong on this problem...?!?!?!?
Look at the hexagon shown.
What is the value of x?
85

140

175

130

I first thought I needed to find the sum of the angles (n-2)180=(6-2)180=(4)180=720
then I subtracted 180 because of the 2 90 degree angles which gave me 540 and I divided 540 by 4 to find the four angles not found and got 135.... not an answer choice.
but id you do it by each angle (n-2)180/n you end up with 120

Question

PLease help I do not know what I did wrong on this problem...?!?!?!?
Look at the hexagon shown. 
What is the value of x?
85

 140

 175

 130

I first thought I needed to find the sum of the angles (n-2)180=(6-2)180=(4)180=720
then I subtracted 180 because of the 2 90 degree angles which gave me 540 and I divided 540 by 4 to find the four angles not found and got 135.... not an answer choice. 
but id you do it by each angle (n-2)180/n you end up with 120

anonymous · Answer

attachment

phi · Answer

you are definitely on the right track.

phi · Answer

but I would write down all the angles, just to make sure I don't make a mistake.

x+x+90+90+x+10+x+10= 720
now simplify

phi · Answer

you do know that x+x+x+x is the same as 4x
and 90+90+10+10= 200
so the equation is
4x+200 = 720
can you simplify this?