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Worksheet: Identifying and Using Parts of a Circle
Q2:
What is the radius of a circle whose diameter is 18?
Q3:
Identify the radii of the circle.
- A
- B
- C
- D
Q4:
In the figure, . Determine the length of .
Q5:
What is the longest segment with endpoints on a circle of radius 66.9 cm?
Q6:
Given that and in the two concentric circles shown below, find the length of .
Q7:
Identify the diameter of this circle.
- A
- B
- C
- D
Q8:
Circles and are of radii 11 and 18 and touch internally. Determine .
Q9:
Given that , find the radius to the circle .
Q10:
Determine the diameter of the circle , given that its radius .
Q11:
Suppose , , and . What is the length of ?
Q12:
In the given figure, which of the following would represent the chord passing through and ?
- A
- B
- C
- D
- E
Q13:
If the length of diameter of circle is 158 cm, find the radius of the circle.
Q14:
What is the diameter of a circle whose radius is 3?
Q15:
Which of the following correctly defines a circle?
- AA circle is the set of points in a plane with a single curved side.
- BA circle is the set of points in a plane that does not have any lines of symmetry.
- CA circle is the set of points in a plane with a limited number of sides.
- DA circle is the set of points in a plane that are the same distance from the a given point called the center.
- EA circle is the set of points in a plane that are different distances away from the center.
Q16:
Identify all the radii in the following circle:
- A
- B
- C
Q17:
Are all the radii of a circle equal in length?
- Ayes
- Bno
Q18:
What is the name for a chord that passes through the center of a circle?
- A the center
- B a radius
- C a diameter
Q19:
The length of the radius of a circle is the length of its diameter.
- A equal to
- B twice
- C half
Q20:
What is the name for any line segment in a circle whose endpoints intersect the circle?
- A twice
- B a quarter of
- C chord
Q21:
If the length of the longest chord in a circle is 310 cm, what is its radius?
Q22:
Chords and meet at . If the lengths , , and are 5, 6.4, and 12 respectively, what are the possible values for ?
- A8 or 5
- B5 or 6.4
- C4 or 6.4
- D8 or 4
Q23:
Is the diameter the longest chord in a circle?
- Ayes
- Bno
Q24:
If the diameters of circles and are 2 cm and 6 cm, respectively, determine the length of .
Q25:
Determine the chord(s) of the circle shown below.
- A
- B
- C