CBSE 2025 · Region 3 · Set 1 · Q10 · 1 mark
If in two triangles $\displaystyle \triangle \mathrm{DEF}$ and $\displaystyle \triangle \mathrm{PQR}, \angle \mathrm{D}=\angle \mathrm{Q}$ and $\displaystyle \angle \mathrm{R}=\angle \mathrm{E}$, then which of the following is not true?
Official answer
From CBSE’s own marking scheme for this paper.
(D)
$\displaystyle \frac{\mathrm{DE}}{\mathrm{PQ}}=\frac{\mathrm{EF}}{\mathrm{RP}}$
TrianglesCriteria for Similarity of TrianglesUnderstandmcqmedium
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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.