Q. A circle of unit radius touches the positive $x$ and $y$ axes. Two parallel tangents $AB$ and $DC$ having slopes $-1$ are drawn to the circle cutting $x$ -axis at $B$ and $C$ and $y$ -axis at $A$ and $D$ respectively. The square of the area of the trapezium $ABCD$ is equal to
NTA AbhyasNTA Abhyas 2022
Solution: