The point of angle over which a transit-level is leveled is called its ___.

The point of angle over which a transit-level is leveled is called its ___.

• A. Corner
• B. Vertex
• C. Angle
• D. Point

Answer: (B)

The point where two sides of an angle meet is called its vertex. An angle is defined by this shared endpoint, so the vertex is the location that the transit-level is focused on when it’s leveled. Corner is a more general everyday term, not the precise geometric term used here. The word angle refers to the size of the opening, not to where it occurs, and a plain point is too generic to name the specific meeting point of the angle. So the vertex is the best choice.

The point where two sides of an angle meet is called its vertex. An angle is defined by this shared endpoint, so the vertex is the location that the transit-level is focused on when it’s leveled. Corner is a more general everyday term, not the precise geometric term used here. The word angle refers to the size of the opening, not to where it occurs, and a plain point is too generic to name the specific meeting point of the angle. So the vertex is the best choice.