48pi inches
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Circumference = 48*pi which is about 150.796 inches
A circle with a 48-inch radius has a circumference of about 301.592 inches.
A table which is 90 inch around its outside (circumference) is 28.648 inches (to 3 dp) across (diameter).
radius X 2 X pi = circumference 40 x 2 x 3.14 = 251.2"
Its circumference = 48*pi inches