defence exam DGAFMS Group C 2025 Mock Test Series Quantitative Aptitude Geometry Triangles, Congruence and Similarity
In a ΔABC, ∠BAC = 90° and AD is perpendicular to BC where D is a point on BC. If BD = 4 cm and CD = 5 cm, then the length of AD is equal to:
1
5√2 cm
2
2√5 cm
3
6 cm
4
4.5 cm