Question: This exercise is programming problem 15.16 from the text: (Two movable vertices and their distances) Write a program that displays two circles with radius 10

This exercise is programming problem 15.16 from the text:

(Two movable vertices and their distances) Write a program that displays two circles with radius 10 at location (40, 40) and (120, 150) with a line connecting the two circles, as shown in Figure 15.28b. The distance between the circles is displayed along the line. The user can drag a circle. When that happens, the circle and its line are moved and the distance between the circles is updated.

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