A passenger jet descends toward an airport. The graph models the descent of the
plane.

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)

Which of the following is true about the following construction of a tangent to a circle from a point outside of the circle?

24m^2n+30mn^2+18mn, a sweet challenge!