engineering recuitment Cochin Shipyard Executive Trainee Mechanical Mock Test Quantitative Aptitude Geometry Quadrilaterals
A circle is inscribed in a quadrilateral ABCD, touching sides AB, BC CD and DA at P, Q, R and S, respectively. If AS = 6 cm, BC = 12 cm, and CR = 5 cm, then the length of AB (in cm) is:
1
15
2
11
3
12
4
13