CD is an arc on circle A. Adjust the radius of the circle by moving the slider. Adjust the length of CD by dragging C or D.[br][br]1. As you drag C and D, the color of the arc will change from red (minor arc) to blue (major arc). Which kind of arc covers more of the circle? Which one covers less?[br]2. Set C and D on the circle. Use the slider to adjust the radius. How does CD change as the radius increases? As the radius decreases?