1. In the figure, points A, Y, and L are collinear but points D, Y, and R, are not. Name all the angles
with vertex Y. Use three letters in naming the angles. There are five of them.
R
A
Y
D​

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)