1. Abby found that the radius of her bike tire was 14 inches. What is the circumference of the tire? Use . A. 44 inches B. 87.92 inches C. 84.14 inches D. 31.14 inches Hint 2. The diameter of a circle is 9 feet. What is the measure of its circumference? Round to the nearest tenth. A. 63.6 ft B. 14.1 ft C. 28.3 ft D. 4.5 ft Hint 3. The radius of a circle measures 6 feet. What is the measure of its circumference? Round to the nearest tenth. A. 37.7 ft B. 12 ft C. 113 ft D. 18.8 ft Hint 4. Which is an accurate description of pi, ? A. the ratio between the area and diameter of any circle B. the ratio between the circumference and diameter of any circle C. the ratio between the area and radius of any circle D. the ratio between the circumference and radius of any circle Hint 5. Which is an accurate description of pi, ? A. the ratio between the circumference and radius of any circle B. the ratio between the circumference and diameter of any circle C. the ratio between the area and diameter of any circle D. the ratio between the area and radius of any circle Hint