railway RRB NTPC Mock Test Series 2024-25 (CBT 1 + CBT 2) Quantitative Aptitude Geometry Triangles, Congruence and Similarity
The centroid of an equilateral triangle ΔABC is O. If AB = 27 cm, then the length of AO is:
1
9√3 cm
2
6√3 cm
3
7√3 cm
4
8√3 cm