Question

1. choose the best answer. what part of the protractor does b refer to? image of a protractor with labels a, b, c, d, e and scale markings (0, 50, 90, 110, 130, 180 etc.) options: outer scale, origin, base line, inner scale

Explanation:

A protractor's baseline is the straight edge used to align with one side of the angle being measured. In the diagram, B is the straight horizontal edge of the protractor, which matches the definition of the baseline. The other options: outer scale (the numbered scale on the outer arc), origin (the center point, which is A here), and inner scale (the numbered scale on the inner arc) do not match B's position.

Answer:

C. base line