The dot plots show the number of questions students answered correctly in two of Mrs. Upton's classes on a homework assignment with 5 questions.
Class 1
Class 2
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o 1 2 3 4 5
o i 2 3 4 5
Number of Correct Answers
Number of Correct Answers

Circle a has a diameter of 7 inches, a circumference of 21.98 inches, and an area of 38.465 square inches. the diameter of circle b is 6 inches, the circumference is 18.84 inches, and the area is 28.26 square inches. part a: using the formula for circumference, solve for the value of pi for each circle. (4 points) part b: use the formula for area and solve for the value of pi for each circle. (4 points)