state gov APPSC Forest/Assistant Beat Officer (ఫారెస్ట్/అసిస్టెంట్ బీట్ ఆఫీసర్) (Pre + Mains) Mock Test 2025 Quantitative Aptitude Geometry Triangles, Congruence and Similarity
Two medians NA and OB of ΔNOP intersect each other at S at right angles. If NA = 15 cm and OB = 15 cm, then what is the length of OA?
1
\(5\sqrt5\) cm
2
\(7\sqrt5\) cm
3
\(6\sqrt5\) cm
4
\(3\sqrt5\) cm