NCERT · Class 9 · Mathematics · TrianglesIf $\triangle PQR \cong \triangle EFD$, then $ED$ is equal to:
Step-by-Step Solution
By corresponding parts of congruent triangles (CPCTC), the first two letters $ED$ in $\triangle EFD$ correspond to the first two letters $PQ$ in $\triangle PQR$. Therefore, $ED = PQ$.
Detailed Options Breakdown
Option : PQ (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 1: QR
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Triangles.
Option 2: PR
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Triangles.
Option 3: DF
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Triangles.
💡 Study Guide: This question tests core syllabus concepts from Triangles. For formulas, key summaries, and mock exam reference guides, read the full Triangles Revision Notes.