Final answer:
The student's question involves finding the measurements of two angles given their expressions ∠a=6x+12° and ∠b=3x+63°. Without more context, we cannot solve for the angles, but one typically uses geometric relationships and algebra to find such measurements. Angle units can be in degrees, minutes, and seconds.
Step-by-step explanation:
The question is asking for the angle measurements of two angles represented by mathematical expressions. Specifically, we have ∠a=6x+12° and ∠b=3x+63°. Without additional information, such as a diagram or a relationship between these angles, we cannot provide a numerical answer. However, angle measurements in problems like these are typically found by applying geometrical theorems or by solving equations when the relationship between the angles is known, for instance if they form a linear pair, are angles of a triangle, or are complementary or supplementary angles.
Units for angle measurements can be in degrees, which is a common standard, or in other units such as radians. A degree is divided into 60 minutes (') and a minute is further divided into 60 seconds (""). Understanding these units and the way angles are represented is important for solving problems in trigonometry and geometry.