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Mathematics · 2026 · 1 mark
CBSE 2026 · Region 2 · Set 3 · Q16
In the given figure $\displaystyle \Delta \mathrm{ABC}$ is shown, in which $\displaystyle \mathrm{DE} \| \mathrm{BC}$. If $\displaystyle \mathrm{AD}=5 \mathrm{~cm}$, $\displaystyle \mathrm{DB}=2 \cdot 5 \mathrm{~cm}$ and $\displaystyle \mathrm{DE}=8 \mathrm{~cm}$, then the length of BC is :
Official answer
From CBSE’s own marking scheme for this paper.
(C)
$\displaystyle 12$ 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.