Equation of a Circle Answers
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Fiona draws a circle with a diameter of 14 meters. What is the area of Fiona’s circle?
A
7
B
14C
28D
49
3
Circle S is shown. Line segment R T is a diameter. The length of S T is 4. Sector R S T is shaded.
A
4
B
8C
16D
20
5
The area of circle Z is 64 ft2.
A
r = 4 ftB
r = 8 ftC
r = 16 ftD
r = 32 ft
7
The circular face of a watch has an area that measures between 800 and 900 square millimeters.What could be the radius of the watch face? Use 3.14 for .
A
14 mmB
15 mmC
16 mmD
17 mm8
Which statements are true regarding the area of circle D? Select two options.
A
The area of the circle depends on the square of the radius.B
The area of circle D is 36.
C
The area of circle D is 324D
The area of the circle depends on the square of pi.E
The area of the circle depends on the central angle.9
Which statements are true about circle Q? Select three options.
A
The ratio of the measure of central angle PQR to the measure of the entire circle is .
B
The area of the shaded sector is 4 units2.C
The area of the shaded sector depends on the length of the radius.D
The area of the shaded sector depends on the area of the circle.E
The ratio of the area of the shaded sector to the area of the circle is equal to the ratio of the length of the arc to the area of the circle.10
The measure of central angle YCZ is 80 degrees.
A
18 units2B
36 units2C
45 units2D
81 units2Did you find these answers helpful?
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