Top 10.759

X = DE = 10.3923048454

Orange = 53.5898384862

40 ≤ Blue Rectangle Area ≤ 50

Min ( X + Y ) = 3.60555127546

tan BAC in Terms of a and b

R / R Minor = 14 / 3

X = 6.92820323028

Missing Angle BEF = 45

Rectangle Area = 14.94427191

Simplified / Improved

Missing Angle ABC = 75