Top 10.872

( Mauve + Green ) / Blue = 1

( Red + Green ) / Black = 3

X = EO = 17

Shaded Area = 19.8997487421

X = AB = 10

Top 10.871

X = ADB = 50

'

Shaded Area = 3

Improved / Elaborated

Area ( ABCD ) / Area ( △ CDM ) = 9

AC = 13.416407865 = 6 sqrt ( 5 )

CF = 4

Blue / Yellow = 7.71604938272

X = CAD = 24

h = EF = 1.875 = 15 / 8

X = ACD = 10

Missing Segment EF = 5

Top 10.870

Radius R = 8

X = Angle BEF = 66

Yellow Area = 25.4154845675

X = AF = 12 / 7 = 1.71428571429

X = CKJ = 108

X = CE = 12

X = CK = 6

X = CF = 4

Orange Area = 42.0893607238

AB = 7 ⇒ R = 4.912845231173

Top 10.869

tan CED = √ 3 = 1.73205080757

Angle KDL = 45

Without knowing that KDL = 45

The Total Area = 810

Radius R = 8.94427191

Pink Area = 22 / 3

BDC = CBD = 78

Angle ACD = 30

Proof that DM & CM Trisect AB

Shaded Area = 5

Unit Circle. x² + y² - xy = 1

Top 10.868

Hexagon Area = 166.276877527

X = LM = 5

Ratio of a / b = 2 / 5

Shaded Fraction = 9 / 14

Ratio of AD / DE = 4

X = CM = 18

X = ADB = 65

Orange Area = 26.1057158515

0 < Blue Area ≤ 12.5

X = ACD = 60

Top 10.867

X = ∠ FEG = 48

Area ( △ ABC ) = 84 Square Units

Segment EF = 10

h = 1.41421356237

X = ∠ CED = 40

X = BCD = 75

Another Approach

Blue Area = 29.2762519061

Triangle CDE Area = 5

X = AB = 4

BCM = ACM = 22.5