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Mathematics · 2025 · 1 mark
CBSE 2025 · Region 1 · Set 1 · Q15
If a sector of a circle has an area of 40 π sq. units and a central angle of 72°, the radius of the circle is:
If a sector of a circle has an area of $\displaystyle 40 \pi$ sq. units and a central angle of $\displaystyle 72$°, the radius of the circle is :
Official answer
(D)
$\displaystyle 10 \sqrt{2}$ units
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CBSE Class 10 Mathematics past-paper question from the 2025 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.