Three sections here. 1. Triangle on the left. Base of the triangle is 6.5 ft. Length of the triangle is 34.5 (33+13-11.5) feet. Exact area of the triangle is 112.125 sq. ft. 2. Big rectangle in the middle - 12' wide all the way down for (33 + 13) feet. Exact area of big triangle is 552 sq. ft. 3. Small rectangle on the right - (18-12) feet wide for 13 feet. Exact area of the small rectangle is 78 sq. ft. Total area is 112.125 + 552 + 78 or 742.125 sq. ft. about halfway between the 733 and 748 that was estimated. This is probably due to rounding in the measurements.
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1. Triangle on the left. Base of the triangle is 6.5 ft. Length of the triangle is 34.5 (33+13-11.5) feet.
Exact area of the triangle is 112.125 sq. ft.
2. Big rectangle in the middle - 12' wide all the way down for (33 + 13) feet.
Exact area of big triangle is 552 sq. ft.
3. Small rectangle on the right - (18-12) feet wide for 13 feet.
Exact area of the small rectangle is 78 sq. ft.
Total area is 112.125 + 552 + 78 or 742.125 sq. ft. about halfway between the 733 and 748 that was estimated. This is probably due to rounding in the measurements.