How many 12x12 inch pavers needed for 72 sq ft?

Answer 1

12 inch * 12 inch = 1 ft * 1 ft = 1 sq ft.

Therefore, a minimum of 72 pavers are needed. That answer assumes that the shape is well behaved and the pavers do not need to be cut. Or that, if they are, all the offcuts are used.

Pavers may need to be cut/trimmed if, for example, the area is circular.