what is the outside diameter of tubing whose inside diameter is 2 1/16 inches and whose wall thickness is 3/8 inches

Answer 1

OUTSIDE WIDTH + INSIDE WIDTH + OUTSIDE WIDTH = TOTAL DIAMETER

3 1 3 6 33 6 45 13

----- + 2 ------ + ------ = ----- + ------ + ------- = ------ = 2 -----

8 16 8 16 16 16 16 16

ANSWER: OUTSIDE DIAMETER OF TUBING IS 2 13/16 INCHES.