30 x 45 what? inches, mm's. trick question :)
If simply feet, length times width. 30sq. ft. x 45sq. ft. = 1350sq. ft.
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2178 square feet.2178 square feet.2178 square feet.2178 square feet.
3.472 square feet.
784 square feet
There are 43560 square feet.
7,500 square feet.