2025 · Q61
In triangle ABC, AD is the altitude. [The exact definitions of p, q, r could not be verified]
Elementary MathematicsGeometry: Lines, Angles and Triangles
- Aqr/p
- Bpr/q
- Cpq/r
- D(p+q)/r
Explanation
Triangle ABC with altitude AD; the definitions of p,q,r could not be recovered (options qr/p, pr/q, pq/r, (p+q)/r). The key is taken from the published coaching key (PW, CDS 2 2025 Set A: C, i.e. pq/r). Note: key disputed - independent verification inconclusive.