As shown in the figure, the Wang family owns a triangular piece of land $\triangle A B C$ , where $\overline { B C } = 16$ meters. The government plans to requisition the trapezoid $D B C E$ portion to develop a road with straight lines $D E , B C$ as edges, with road width $h$ meters, leaving the Wang family with only $\frac { 9 } { 16 }$ of the original land area. After negotiation, the plan is changed to develop a road with parallel lines $B E , F C$ as edges, with the same road width, where $\angle E B C = 30 ^ { \circ }$ . Only the $\triangle B C E$ region needs to be requisitioned. According to this agreement, the Wang family's remaining land $\triangle A B E$ has (15-1)(15-2)(15-3) square meters.
As shown in the figure, the Wang family owns a triangular piece of land $\triangle A B C$ , where $\overline { B C } = 16$ meters. The government plans to requisition the trapezoid $D B C E$ portion to develop a road with straight lines $D E , B C$ as edges, with road width $h$ meters, leaving the Wang family with only $\frac { 9 } { 16 }$ of the original land area. After negotiation, the plan is changed to develop a road with parallel lines $B E , F C$ as edges, with the same road width, where $\angle E B C = 30 ^ { \circ }$ . Only the $\triangle B C E$ region needs to be requisitioned. According to this agreement, the Wang family's remaining land $\triangle A B E$ has (15-1)(15-2)(15-3) square meters.