Question 58
Let $ABCD$ be a convex quadrilateral such that $AB + BC = 2021$ and $AD = CD$. We are also given that
$$\angle ABC = \angle CDA = 90^{\circ}$$
Determine the length of the diagonal $BD$.
$$\angle ABC = \angle CDA = 90^{\circ}$$
Determine the length of the diagonal $BD$.