To determine the length of segment AB given that G is the midpoint of both segments AB and DE, we would generally need additional information, such as the coordinates or lengths of other segments or points involved.
If the problem provides the length of DE or the coordinates of points A, B, D, E, or G, we could potentially calculate the length of AB. However, based solely on the information provided in your question, it’s not possible to ascertain the length of segment AB without further details.
Please provide additional details or context, and I'd be happy to help you!