Final answer:
To determine the measure of angle <1, additional context or a diagram is required as the provided information is incomplete. Angle measures are found through relationships like complementary and supplementary angles.
Step-by-step explanation:
To find the measure of angle <1, we need additional context from the question as the information provided is incomplete. However, based on general knowledge, angle measures can be determined through various relationships such as complementary, supplementary, vertical angles, or angles within geometric shapes.
For example, if angle <1 and another angle are complementary, their measures would add up to 90 degrees. If they are supplementary, they would add up to 180 degrees. Without additional context or a diagram, we cannot definitively determine the measure of <1.