MCQ1 markYear: 2023EasyCBSE Class 10
circlestangentangle-sum
Question
In the given figure, PQ is a tangent to the circle with centre O. If ∠OPQ=x, ∠POQ=y, then x+y is:

Solution
1
Since PQ is a tangent at Q, ∠OQP=90°. In △OPQ: x+y+90°=180°⇒x+y=90°
+1 mark