defence exam Agniveer Vayu Group X & XY Mock Test 01/2026 Mathematics Vector Algebra Applications of Vectors
What is the area of the rectangle having vertices A, B, C and D with position vectors \(\rm -\hat{i} + \frac{1}{2} \hat {j} + 4 \hat {k}, \hat{i} + \frac{1}{2} \hat {j} + 4 \hat {k}, \hat{i} - \frac{1}{2} \hat {j} + 4 \hat {k} \ and \ -\hat{i} - \frac{1}{2} \hat {j} + 4 \hat {k}\) ?
1
1/2 sq unit
2
1 sq unit
3
2 sq units
4
4 sq units