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784

Q:

X and Y are centres of circles of radius 9 cm. and 2 cm respectively XY=17 cm. Z is the centre of a circle of radius r cm which touches the above circles externally. Given that - ∠xzy = 90o the value of r is -

  • 1
    13 cm
  • 2
    6 cm
  • 3
    9 cm
  • 4
    8 cm
  • Show Answer
  • Workspace

Answer : 2. "6 cm"

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