Answer:
Note: This looks incorrect but I couldn't find what's wrong.
x=39.83
angle 1= 84.66 degrees
Step-by-step explanation:
The total sum of the exterior angles of any polygon is 360 degrees.
I see that angle 1 is congruent to angle (2x-5)
Here's our equation:
x+21+x+12+45+2x-5+53+2x-5=360
6x+121=360
6x=239
6x/6=239/6
x=39.83
angle 1 = 2x-5 = 2(39.83)-5 = 84.66 degrees
