$8.$ Lot $\backslash ($ A B C D $\backslash )$ between two parallel street lines is $350\mathrm{.}00$ ft deep and has a $220\mathrm{.}00$ ft frontage $(\backslash ($ A B $\backslash ))$ on one street and a $260\mathrm{.}00$ ft frontage $($CD$)$ on the other. Interior angles at $\backslash ($ A $\backslash )$ and $\backslash ($ B $\backslash )$ are equal, as are those at $\backslash ($ C $\backslash )$ and $\backslash ($ D $\backslash ).$ What distances $\backslash ($ A E $\backslash )$ and $\backslash ($ B F $\backslash )$ should be laid off by a surveyor to divide the lot into two equal areas by means of a line EF parallel to $\backslash ($ A B $\backslash )?$