If ΔPQR is right angled at Q, PQ = 12 and ∠PRQ = 30°, then what is the value of QR?

- a)12√3
- b)12√2
- c)12
- d)24

Correct answer is option 'A'. Can you explain this answer?

Related Test: SSC CPO Exam Paper 02 July 2017 (Shift-2)

2 Answers

Sandy Messi
answered
Jun 25, 2020

Since tan (theta) = perpendicular/ base

so, tan 30= 12/QR

1/âˆš3= 12/QR

therefore, QR= 12âˆš3 units.

so, tan 30= 12/QR

1/âˆš3= 12/QR

therefore, QR= 12âˆš3 units.

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