$c=40\degree,\ d=20\degree$

$c\ =\ 20\degree\ ,\ d\ =\ 40\degree$

$c=40\degree\ ,\ d=\ 40\degree$

$c=20\degree\ ,\ d=20\degree$

$x=10\degree\ ,\ y=10\degree$

$x=11\degree\ ,\ y=11\degree$

$x=12\degree\ ,\ y=12\degree$

$x=20\degree\ ,\ y=20\degree$

$x=60\degree\ ,\ y=30\degree$

$x=30\degree\ ,\ y=30\degree$

$x=30\degree\ ,\ y=60\degree$

$x=60\degree\ ,\ y=60\degree$

$x=70\degree\ ,\ y=70\degree$

$x=60\degree\ ,\ y=60\degree$

$x=50\degree\ ,\ y=50\degree$

$x=70\degree\ ,\ y=60\degree$

$i=60\degree\ ,\ h\ =40\degree$

$i=40\degree\ ,\ h\ =60\degree$

$i=40\degree\ ,\ h\ =40\degree$

$i=40\degree\ ,\ h\ =30\degree$

$30\degree$

$40\degree$

$45\degree$

$60\degree$

$60\degree$

$90\degree$

$100\degree$

$110\degree$

$60\degree$

$65\degree$

$70\degree$

$75\degree$

$65\degree$

$75\degree$

$90\degree$

$105\degree$