\( 1 \) acre = \( 43,560 \) sq. feet \(= 0.0040468564224 km^2 \)

\( 1 \) mile = \( 1.60934 km \)

\( 1 \) yard = \( 3 \) feet

\( 1 \) foot = \( 12 \) inches

\(0 ^{\circ} C \) = \( 32 ^{\circ} F \)

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