Circular arc on a part profile is being machined on a vertical CNC milling machine, CNC part program using metric units with absolute dimensions is listed below: ............................................ N60 G01 X 30 Y 55 Z 5 F50 N70 G02 X 50 Y 35 R 20 N80 G01 Z 5 ............................................ The coordinates of the centre of the circular arc are:

Circular arc on a part profile is being machined on a vertical CNC mil

1.	Circular arc on a part profile is being machined on a vertical CNC milling machine, CNC part program using metric units with absolute dimensions is listed below: ............................................ N60 G01 X 30 Y 55 Z 5 F50 N70 G02 X 50 Y 35 R 20 N80 G01 Z 5 ............................................ The coordinates of the centre of the circular arc are:
A.	(30, 55)
B.	(50, 55)
C.	(50, 35)
D.	(30, 35)
Answer» E.

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