This figure can be broken up into three figures. The triangle has dimensions of
The triangle has an area of 4.
The small rectangle has dimensions of 4ft x 6ft. İt's area is 24ft^2. The large rectangle without triangle length has dimensions of 10ft x 12ft and an area of 1200^2. Subtract the empty box area of 24ft^2 from 1200ft^2, and add the triangle's area to get a total area of 1176ft^2.