railway RRB Group D Mock Test Series 2024-25 Quantitative Aptitude Geometry Triangles, Congruence and Similarity
ΔABC ~ ΔEDF, Area ABC ∶ Area DEF = 49 ∶ 4. If AB, AC, BC are, respectively, 10 cm, 14 cm, 21 cm, then what is the length (in cm) of EF?
1
6
2
3.5
3
4
4
4.5