3 feet in 1 yard, so which is greater 6 ft or 7 ft.
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Which is greater? 21 ft or 7 yd
14
Less
23 feet
1 yd = 3 ft area = ½ × (sum bases) × height → area = ½ × (5 ft + 3½ yd) × 7 ft = ½ × (5 ft + (3½ × 3) ft) × 7 ft = ½ × (5 + 10½ ft) × 7 ft = 54¼ sq ft