50
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An eight-foot wide round table is 50.27 square feet.
10-12
120cm (4') Round Table - Seats 6/7
10 feet by 10 feet- this includes 18 inches from table to back of chair for seating arrangements.
The standard rectangular banquet table is eight feet long and comfortably seats eight to ten people. A six foot rectangular model is also available and seats six to eight people. Round banquet tables are available in 30", 48", 60" and 72" diameters. These seat as few as four (30") and as many as ten (72"). Round tables are less efficient in terms floor space.
Generally it's eight people seated at a round table. Round tables are much better so guests can talk to one another. Eight per table would be 19 tables (with a few less at one table.) You can ask the reception hall if they would consider 10 guests to a round table which would be 15 round tables.
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The round table was used rather than a more conventional rectangle so that there would be no 'seating plan'. According to Sir Thomas Malory in the Morte D'Arthur, King Arthur implemented the Round Table because his knights kept fighting over who got the most prestigious seats at a normal, rectangular table (presumably those near the head of the table). By using a round table instead, Arthur made each seat equally prestigious, as a circle has no head or foot.
mabey about 2m (6.561 679 79 feet)
Eight Feet will give each person plenty of room