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Mathematics
10th -
12thgrade
Equations/Arcs/Angles/Chords of a Circle
20 questions
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- 1. Multiple Choice
Which is the correct equation of a circle that is centered at the origin (0,0) and has a radius of 2?
x2 + y2 = 2
x2 + y2 = 3
x2 + y2 = 4
(x - 2)2 + (y - 2)2 = 4
- 2. Multiple Choice
Which is the correct equation for a circle whose center is the origin and has a radius of 3?
x2 - y2 = 3
x2 - y2 = 9
x2 + y2 = 3
x2 + y2 = 9
- 3. Multiple Choice
Which is the correct equation of a circle centered at (2, -4) and has a radius of 4?
(x - 2)2 + (y + 4)2 = 4
(x - 2)2 + (y + 4)2 = 16
(x + 2)2 + (y - 4)2 = 4
(x + 2)2 + (y - 4)2 = 16
- 4. Multiple Choice
Which is the correct equation of a circle whose centered at (-1, -5) and has a radius of 5?
(x + 1)2 + (y + 5)2 = 5
(x - 1)2 + (y - 5)2 = 5
(x - 1)2 + (y - 5)2 = 25
(x + 1)2 + (y + 5)2 = 25
- 5. Multiple Choice
Which is the correct equation of the given circle?
(x + 2)2 + (y + 1)2 = 2
(x + 2)2 + (y + 1)2 = 4
(x - 2)2 + (y - 1)2 = 2
(x - 2)2 + (y - 1)2 = 4
- 6. Multiple Choice
Which is the correct equation of the given circle?
(x + 1)2 + (y - 3)2 = 9
(x - 1)2 + (y + 3)2 = 9
(x + 1)2 + (y + 3)2 = 9
(x - 1)2 + (y - 3)2 = 9
- 7. Multiple Choice
Which graph has the equation
(x - 4)2 + (y + 1)2 = 9
- 8. Multiple Choice
Which graph has the equation
x2 + (y - 3)2 = 4
- 9. Multiple Choice
Which graph has the equation
(x + 3)2 + y2 = 4
- 10. Multiple Choice
Which graph has the equation
(x + 1)2 + (y - 3)2 = 9
- 11. Multiple Choice
The ______ and _____ lines are the chords of this circle.
black and yellow
red and green
yellow and blue
blue and green
- 12. Multiple Choice
What is the exact circumference of a circle with a radius of 4 cm?
12.56 cm
25.12 cm
- 13. Multiple Choice
What is the exact circumference of the circle inscribed in the square?
- 14. Multiple Choice
Identify all of the minor arcs
(there can be more than one answer - 3)
Arc CH
Arc FCH
Arc FG
Arc GHF
Arc HGF
- 15. Multiple Choice
Find the measure of Arc BC.
- 16. Multiple Choice
Find the value of x.
- 17. Multiple Choice
Find the value of x.
- 18. Multiple Choice
Identify the semicircles of this figure.
(there may be more than one answer)
Arc AB
Arc AD
Arc BAD
Arc BDC
Arc ABC
- 19. Multiple Choice
In the formula for arc length, the x represents...
the arc length
the radius
the circumference
the central angle
- 20. Multiple Choice
True or False. The radius and diameter of a circle are considered chords.
True
False
Not enough information
Maybe
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