Question 15Rectangle $ABCD$ has $AB=3$ and $BC=4.$ Point $E$ is the foot of the perpendicular from $B$ to diagonal $\overline{AC}.$ What is the area of $\triangle ADE?$$ 1 $$ \dfrac{42}{25} $$ \dfrac{28}{15} $$ 2 $$ \dfrac{54}{25} $