Center Number

Radius (cm)

Center Coordinates

Center Angles

Remarks

x (cm)

y (cm)

1

550

275

0

2 × 103˚45'24''

Crown arch

2

120

172.7

417.7

61˚50'53''

Right arch

3

120

172.7

−417.7

61˚50'53''

Left arch

-

1800

1800

0

2 × 14˚23'43''

Invert arch