No, a 12 foot x 14 foot room is 168 square feet.
12ft * 14 ft = 12*14/9 sq yards = 18.66... sq yards.
12 in = 1 ft → 14 in × 20 in = (14 ÷ 12) ft × (20 ÷ 12) ft = 1 17/18 sq ft ≈ 1.94 square feet
Multiply 14 X 12 168 sq ft
12' * 21 ft = 12*21 sq ft = 252 sq ft.
One sq yd is 9 sq ft, (3ft x 3ft) so 12 sq yds is 108 sq ft (12 x 9 sq ft)
1 sq ft = 1 ft * 1 ft = 12 inches * 12 inches = 144 sq inches.
1 ft = 12 in 1 sq ft = 1 ft × 1 ft = 12 in × 12 in = 144 sq in → 45 sq ft = 45 × 144 sq in = 6480 sq in.
1 foot = 12 inches 1 sq ft = 12 x 12 = 144 sq in Floor area = 12 x 14 = 168 sq ft = 168 x 144 = 24192 sq in
14 ft X 12 ft = 168 Sq. Ft /9 = 18.67 (19)
609,840 sq. ft.
12 in = 1 ft → 1 in = 1/12 ft 1 sq in = 1 in x 1 in = 1/12 ft x 1/12 ft = 1/144 sq ft → 1644 sq in = 1644 x 1/144 sq ft = 115/12 sq ft ≈ 11.42 sq ft
720 sq ft