Introduction into Java, 10th edition, Liang

Suppose a pentagon is centered at (0. 0) with one point at the 0 o'clock position, as shown in Figure 4.7c. Write a program that prompts the user to enter the radius of the bounding circle of a pentagon and displays the coordinates of the five corner points on the pentagon. Here is a sample run: Enter the radius of the bounding circle: 100 The coordinates of five points on the pentagon are (95.1057, 30.9017) (0.000132679. 100) (-95.1056. 30.9019) (-58.7788. -80.9015) (58.7782, -80.902)