Question

If in two triangles $DEF$ and $PQR$, $\angle D = \angle Q$ and $\angle R = \angle E$, then which of the following is not true?

Accepted Answer

B. Since $\angle D = \angle Q$ and $\angle E = \angle R$, by AA similarity criterion, $	riangle DEF \sim 	riangle QRP$. Therefore, the corresponding side ratios are: $$\frac{DE}{QR} = \frac{EF}{RP} = \frac{DF}{QP}$$ Option (B) states $\frac{DE}{PQ} = \frac{EF}{RP}$, which is incorrect.

Ratios of sides in similar triangles

Explanation

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