Which equations are true? A. 2= = 2 2 x 1 B. 2= ; = 2x3 thing C 4 = 5 = 4x9 D D. 4 = 5 = 4x1 VE 7: } =7x5 OF. 7= 5=7x1​

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)