Introduction to Circles Answers
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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.
A
106°B
108°C
148°D
212°2
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In circle O, RT and SU are diameters.
A
47°B
52°C
64°D
87°3
Circle X with a radius of 6 units and circle Y with a radius of 2 units are shown.
A
Translate the circles so they share a common center point, and dilate circle Y by a scale factor of 4.B
Translate the circles so the center of one circle rests on the edge of the other circle, and dilate circle Y by a scale factor of 4.C
Translate the circles so they share a common center point, and dilate circle Y by a scale factor of 3.D
Translate the circles so the center of one circle rests on the edge of the other circle, and dilate circle Y by a scale factor of 3.4
In circle O, ST is a diameter.
A
22.0B
25.0C
25.4D
37.25
In circle O, and are diameters. Arc ED measures 17°.
A
107°B
180°C
253°D
270°6
In circle O, AC and BD are diameters.
A
50°B
80°C
100°D
130°7
In circle O, SU is a diameter.
A
100°B
108°C
130°D
160°8
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.
A
m + 80 + 35 = 180
B
m + 80 + 35 = 360C
m – 80 – 35 = 360D
m – 80 – 35 = 1809
In circle O, and are diameters. The measure of arc DC is 50°.
A
40°B
90°C
140°D
220°10
Circle B is shown. Line segments C B, D B, and E B are radii and they form 3 congruent angles.
A
a minor arcB
a major arcC
a semicircleD
a chordDid you find these answers helpful?
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