$\delta$

Ptolemy’s theorem

corollary of Ptolemy’s theorem

Candy theorem

$\delta =N\left(0,1\right)$

6.9082

1.9009

-

$\delta =N\left(0,2\right)$

73.0179

1.9890

-

$\delta =N\left(0,3\right)$

229.6791

2.0426

-