Introduction to Circles

Question 1

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.

Revolt · Accepted Answer

Line G H

Question 2

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.

Revolt · Accepted Answer

149°

Question 3

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.

Revolt · Accepted Answer

212°

Question 4

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.

Revolt · Accepted Answer

Line segment A B

Question 5

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

Revolt · Accepted Answer

The degree measure of the diameter and the degree measure of the semicircle are the same.

Question 6

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

Revolt · Accepted Answer

a major arc

Question 7

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

Revolt · Accepted Answer

253°

Question 8

In circle O, ST is a diameter.

Revolt · Accepted Answer

25.0

Question 9

In circle O, RT and SU are diameters.

Revolt · Accepted Answer

64°

Question 10

Circle O is shown. Line segments B O and O C are radii. Point A is on the circle and is not within angle B O C.

Revolt · Accepted Answer

2:1

Introduction to Circles Answers

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