Chapter 10 Part 2 Unit TEST: Circles Answers
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Which equation represents a circle that contains the point (–2, 8) and has a center at (4, 0)?Distance formula:
A
(x – 4)2 + y2 = 100B
(x – 4)2 + y2 = 10C
x2 + (y – 4)² = 10D
x2 + (y – 4)² = 10022
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Points E, F, and D are located on circle C. The measure of arc ED is 108°.
A
54°B
72°C
108°D
126°23
Points E, F, and D are located on circle C.
A
34°B
68°C
112°D
132°24
Circle G is shown. Line segment F G is a radius with length 3.
A
6
B
9C
12D
1825
The diagram shows one way to develop the formula for the area of a circle. Pieces of a circle with radius r are rearranged to create a shape that resembles a parallelogram.
A
A = (2πr)(r)B
A = (2πr)(2r)C
A =(2πr)(r)
D
A =(2πr)(r2)Did you find these answers helpful?
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