Final answer:
The measure of angle DGV is approximately 15.56°.
Step-by-step explanation:
The measure of angle DGV can be found by subtracting the measure of angle DGW from the measure of angle VGW. According to the given information, angle DGW measures 14.5° and angle VGW measures 30.05°. Therefore, the measure of angle DGV is approximately 15.56°.