CBSE 2025 · Region 1 · Set 1 · Q18 · 1 mark
A piece of wire $\displaystyle 20$ cm long is bent into the form of an arc of a circle of radius $\displaystyle \frac{60}{\pi} \mathrm{~cm}$. The angle subtended by the arc at the centre of the circle is :
Official answer
From CBSE’s own marking scheme for this paper.
(B)
$\displaystyle 60^{\circ}$
Areas Related to CirclesArea of a Sector of a CircleApplymcqeasy
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CBSE Class 10 Mathematics past-paper question from the 2025board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.