Top 10.887

Orange Area = 35.2752458715

X = AC = 8

Top 10.886

Perimeter = 6.1803398875

X = ADE = 10

Blue Fraction = 3 / 10 = 0.3

Triangle Area = 41.5692193817

X = FO = 2.73205080757

Shaded Area = 32

Shaded Area = 5

X = BG = 9.21954445729

X = DEF = DAF = 60

AC = 6.92820323028

Top 10.885

X = ADE = 30

Radius R = 12

X = BC = 5

Red Triangle Area = 2

BD = CD = 8.48528137424

X = CKF = 72

Green / Yellow = 1.61803398875 

Circle Area = 490.873852123

Green Area = 16.5770862247

Shaded Triangle Area = 12

Top 10.884

Mathematical Proof

Green Area = 0.584308349347

X = BAC = 100

Diameter = 2R = 21 

X = EF = 9

Hexagon Area = 45.0333209968

AM / BC = 3 / 2 = 1.5

Pink Area = 10 if ABCD is a Square

X = AB = 13

X = CT = 9

Top 10.883

X = AD = 11

Orange Area = 55.1068501159

X = DE = 5

Blue Area = 24

Green Triangle Area = 12

Shaded Area = 96

Yellow Triangle Area = 30

X = ABF = 30

Perimeter ( ABCDEF ) = 15

Red Area = 2.01630825549

Top 10.882

Shaded Area = 14

X = BL = 12

Angle ACO = 15

Triangle Area = 210

Total Area = 49

X = CED = 35

Orange Area = 70.8333333333

Shaded Area = 27.2

Shaded Area = 18.8495559215

Green Area = 95.2949771589