Answer:
b. DC
b. 15
Step-by-step explanation:
Point A = center of circle
The widest part of the circle is the diameter. The diameter is a straight line that touches the circumference of the circle and passes through the center of the circle. Therefore, the diameter is DC, and this is the longest line segment.
The radius of a circle is a straight line from the center of the circle to a point on the circumference. Therefore, AE = radius of the circle.
The radius of a circle is half the length of the diameter.
Therefore, if AE = 7.5, then DC = 2 × 7.5 = 15
