Lesson 10.1: Introduction to Circles Answers

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

In circle O, AC and BD are diameters.

In circle O, SU is a diameter.

In circle O, RT and SU are diameters.

Circle D is shown. Line segments E D, F D, and G D are radii. Angle E D F is 80 degrees and angle F D G is 35 degrees. Point H is on the other side of the circle.

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.