SA = 4 × π × 0.325 2 = 1.327 in 2 ... gift of the 3 ft × 4 ft × 5 ft surprise: SA = (2 × 3 × 4) + (2 × 4 × 5) + (2 × 3 × 5) = 94 ft2 ... millimeter2, 0.000001.
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