Answer:
BE=24
Angle EBC=33
Explanation:
Rectangle diagonals are congruent so




Plug that in one of the equations.

BE=24.
ECD is apart of Isoceles triangle EDC.
Another isoceles triangle is EAB.
They triangle share two sides( remeber all diag ki bals in a rectangle are congruent) and a angle E, so they are congruent triangles.
That means Angle EBA measures 57 degrees.
Angle EBC and Angle EBA add up to 90 degrees so
Angle EBC=33