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Mathematics · 2026 · 1 mark
CBSE 2026 · Region 4 · Set 3 · Q8
From an external point P, a tangent PT has been drawn to a circle with centre at O and radius $\displaystyle 3$ cm, intersecting its concentric circle at A and B. If $\displaystyle \mathrm{AB}=8 \mathrm{~cm}$ and $\displaystyle \mathrm{OA}=\mathrm{AP}$, the length PQ equals.
Official answer
From CBSE’s own marking scheme for this paper.
(C)
$\displaystyle 9$ cm
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CBSE Class 10 Mathematics past-paper question from the 2026board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.