Top 10.759

BO = 5.09901951359

X = AD = 3

Elaborated

Missing Angle ABC = 75

Major Semicircle Radius = 5

X = BDC = 60

X = Angle CBD = 52

X = BF = 3.5 = 7 / 2

X = BC = 11

X = AB = CD = 10

Angle FCG = 72