Question
A circular table has a radius of 10 inches. C=pi d where C is the circumference and d is the diameter . Use 3.14 for pi What is the circumference of the table? A. 6.4 in. B. 15.7 in. C. 31.4 in. D. 62.8 in.
Answer
4.6
(267 Votes)
Myfanwy
Elite · Tutor for 8 years
Answer
Step 1: Identify the given information.The radius (r) of the circular table is 10 inches.Step 2: Calculate the diameter (d) of the circle.The diameter is twice the radius, so:d = 2 * rd = 2 * 10 inchesd = 20 inchesStep 3: Use the circumference formula to find the circumference (C).The formula for the circumference of a circle is:C = π * dStep 4: Substitute the value of π and the diameter into the formula.Using 3.14 for π and 20 inches for the diameter:C = 3.14 * 20 inchesStep 5: Calculate the circumference.C = 62.8 inchesStep 6: Identify the correct answer from the options.The circumference of the table is 62.8 inches, which corresponds to option D.Final Answer: D. 62.8 in.