To determine the measure of \( IG \) from the information given \( TU = 12 \), we would need more context or specific relationships involving points \( I \), \( G \), and \( T \), \( U \). The provided options suggest a multiple-choice question where you might need to use a specific theorem or rule regarding lines, segments, or angles that relate these points.
Without additional information or a diagram, I can't provide a straightforward answer. If you have any specific diagram or additional context about how \( IG \) relates to \( TU \), please share that, and I would be happy to help!
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