Lesson 1: Introduction to Circles Answers

In circle O, RT and SU are diameters.

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, SU is a diameter.

In circle O, and are diameters. The measure of arc DC is 50°.

Which is true regarding chords and diameters of circles?

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

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

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 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.