A mountain bike wheel has a diameter of 26 in. What is the approximate circumference of the wheel? Use pi star times = 3.14. Express your final answer to the nearest hundredth.

81.64 in. is the answer if 3.14 is used, but if more digits are used, the answer is 81.68 in.

26 x 3.14 = 81.64 in. The circumference can by found by multiplying pi by the diameter of the circle.