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Lesson: Finding the Coordinates of the Center and the Radius of a Circle

Question Video: The Equation of a Circle

03:44

Worksheet: Finding the Coordinates of the Center and the Radius of a Circle • 16 Questions

Q1:

Find the center and radius of the circle .

  • A center: , radius: 10
  • Bcenter: , radius: 10
  • C center: , radius: 10
  • D center: , radius: 100
  • E center: , radius: 100

Q2:

Find the center and radius of the circle .

  • A center: , radius: 15
  • Bcenter: , radius: 225
  • C center: , radius: 225
  • D center: , radius: 15
  • E center: , radius: 225

Q3:

Find the coordinates of the center of the circle whose equation is .

  • A
  • B
  • C
  • D

Q4:

Find the center and radius of the circle .

  • A length units
  • B length units
  • C length units
  • D length units

Q5:

Find the center and radius of the circle .

  • A length units
  • B length units
  • C length units
  • D length units

Q6:

Find the center and radius of the circle .

  • A length units
  • B length units
  • C length units
  • D length units

Q7:

Find the center and radius of the circle .

  • A length units
  • B length units
  • C length units
  • D length units

Q8:

Find the center and radius of the circle .

  • A length units
  • B length units
  • C length units
  • D length units

Q9:

Find the center and radius of the circle .

  • A length units
  • B length units
  • C length units
  • D length units

Q10:

By completing the square, find the center and radius of the circle .

  • A center: , radius:
  • B center: , radius: 5
  • C center: , radius: 5
  • D center: , radius: 5
  • E center: , radius:

Q11:

By completing the square, find the center and radius of the circle .

  • A center: , radius:
  • Bcenter: , radius: 3
  • C center: , radius: 3
  • D center: , radius: 3
  • E center: , radius:

Q12:

Find the center and radius of the circle .

  • A center: , radius: 8
  • Bcenter: , radius: 64
  • C center: , radius: 64
  • D center: , radius: 64
  • E center: , radius: 8

Q13:

Find the center and radius of the circle .

  • A center: , radius: 3
  • Bcenter: , radius: 3
  • C center: , radius: 9
  • D center: , radius: 9
  • E center: , radius: 3

Q14:

Find the center and radius of the circle .

  • A center: , radius: 5
  • Bcenter: , radius: 25
  • C center: , radius: 25
  • D center: , radius: 25
  • E center: , radius: 5

Q15:

Find the center and radius of the circle .

  • A center: , radius: 10
  • Bcenter: , radius: 100
  • C center: , radius: 100
  • D center: , radius: 100
  • E center: , radius: 10

Q16:

Find the coordinates of the center of the circle whose equation is .

  • A
  • B
  • C
  • D
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