So first thing you need to understand is that ABC and AFE are congruent triangles. This means we can find the other angles, based on ABC:
Angle FAE = 26.56505118 degrees
Angle AEF = 63.43494882 degrees
Angles ECD and DEC are both 45 degrees
Now, we can find the angles in ACE:
AEC = 71.56505118 degrees
ECA = 71.56505118 degrees
CAE = 36.86989764 degrees
The mean hours worked is 9 hours.
You want to find integers between the values of -1 and 4.
This includes 1, 2, 3, and -1.
The least amout of parts it can be divided into is 15. (Common denom. Of fractions)
