Introduction to Circles Answers

Circle D is shown. Line segment F E goes through point D. Line segment C D is shown. Line segment G H goes from one side of the circle to the other side. Line segment A B is outside of the circle and intersects the circle at point B.

In circle O, ST is a diameter.

In circle O, AC and BD are diameters.

Circle D is shown. Line segments G D, F D, and E D are radii. Point H is on the other side of the circle. Angle G D F is 83 degrees and angle F D E is 66 degrees.

Circle D is shown. Line segment F E goes through point D. Line segment C D is shown. Line segment G H goes from one side of the circle to the other side. Line segment A B is outside of the circle and intersects the circle at point B.

Circle B is shown. Line segments C B, D B, and E B are radii and they form 3 congruent angles.

Circle B is shown. Line segments C B, D B, and E B are radii. Angle C B E is 52 degrees and angle E B D is 160 degrees.

In circle O, and are diameters. Arc ED measures 17°.

How are the semicircle and the diameter of a circle related?

Segments AC and BD are diameters of circle O.