Top 10.906

Blue Area = 21.5390309173

X = DE = 2.64575131106

Trapezoid AEDT Area = 90

Top 10.905

Green Area = 56.6260058524

Shaded Area = 3.12435565298

X = AFB = 99 = ACB + AOB

Yellow Square Area = 10

X = 6.89897949. a / b =3.44948974

Shaded Area = 7

Green Area = 13

𝛼 = 10

X = ABD = 10

X = AC = 21.0007060445

Top 10.904

X = CD = 30

Shaded Rectangle Area = 70

Proof that R² = 2a² - b²

X = AC = 2.64575131106

Rectangle Area = 13.8564064606

Triangle ABC Side S = 12

X = DL = 19

Orange / Green = 100 / 81

Area DFH / Area BEG = 19 / 7

Shaded Area = 25 / 3

Top 10.903

X = ACD = 78

Green Area = 44.167295593

Orange Area = 31.016204521

Orange Area = 21.8564064606

Orange Area = 33.4153162899

X = Angle ACB = 20

Shaded Area = 12 Square Units

R / Shaded Area = 0.173255190719

X = DEQ = 110

R = 7.04166666667 = 169 / 24

Top 10.902

X = ADP = 30

Blue Area = 20.7846096908

AE / CE = 0.333333333333 = 1 / 3

Radius r = 1.80118581244

X = 53.1301023542

X = CE = 0.61803398875

X = AD = 2.8 = 14 / 5

Rectangle ABCD Area = 2

AC = 13.416407865

X = Angle BAE = 109

Top 10.901

Proof that HK = DH

Pink Triangle Area = 12

Green Area = 0.314159265359

X = Angle ACB = 25

Blue Triangle Area = 6.63324958071

Yellow Area = 194.162607362

Square ABCD Area = 520

X = GH = 3.16227766017

Blue Area = 9.77357067506

Segment FH = 25