Teaching BPSC बिहार मध्य विद्यालय (6 to 8) शिक्षक भर्ती 4.0 Mock Test Quantitative Aptitude Geometry Co-ordinate Geometry
If four vertices of a parallelogram are A (-2, a), B (b, 2a – 3), C (-3, 1) and D (-8, -1), then what is the value of \(\sqrt {{a^2} - {b^2}}\)?
1
8 unit
2
4 unit
3
6 unit
4
More than one of the above
5
None of the above