Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test Quantitative Aptitude Geometry Quadrilaterals
The diagonals of the rectangle ABCD intersect at O. If ∠COD = 78°, then ∠OAB is
1
78°
2
51°
3
61°
4
More than one of the above
5
None of the above