The largest table top that could be cut in the given rectangle piece is 0.6 meters, If the given rectangular piece is 1.20 m by 1.80 m.
Explanation:
The given is,
Rectangular piece of wood that measures 1.20 m by 1.80 m.
Step:1
For the circular table top, from the rectangular piece. We consider the dimensions of the rectangular.
The circle from the rectangular,
Ref the attachment,
Minimum dimension of rectangle = Diameter of circle
From the given dimensions,
1.20 m = Diameter of circle
d = 1.20 m
Step:2
Conversion of diameter to radius,



Radius of circle table top, r = 0.6 meters
Result:
The largest table top that could be cut in the given rectangle piece is 0.6 meters, If the given rectangular piece is 1.20 m by 1.80 m.