In the figure, if XZ is 10cm, calculate RY in cm

In the figure, if XZ is 10cm, calculate RY in cm

  • A.
    10
  • B.
    10(1 – (frac{1}{sqrt{3}}))
  • C.
    10(1 – (frac{1}{sqrt{2}}))
  • D.
    10[1 – (sqrt{3})]
Correct Answer: Option B
Explanation

RY = YZ – RZ

= 10 tan 45 – 10 tan 30

= 10(1 – (frac{1}{sqrt{3}}))

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