What is the value of r if the distance between the point (4,2) and (1,r)

MATHEMATICS
JAMB 2009

What is the value of r if the distance between the point (4,2) and (1,r) is 3 units?

  • A. 1
  • B. 2
  • C. 3
  • D. 4

Correct Answer: B. 2



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