Question

In the circle given, OP = 1 unit and ∠POQ = θ. Which side represents $cos\theta$?

• A. PQ
• B. OQ
• C. OA
• D. None of the above

Answer 1

The correct option is B

OQ

In $\Delta POQ$,

$cos\theta =\frac{OQ}{PO}=\frac{OQ}{1}=OQ$

$\therefore cos\theta =OQ$