Calculation of the measures of the sides AB, BC, and AC of a triangle in the Cartesian plane, classification of the triangle by the length of its s...

Calculation of the measures of the sides AB, BC, and AC of a triangle in the Cartesian plane, classification of the triangle by the length of its sides, calculation of the midpoint of the sides AB, BC, and AC, calculation of the length of a median of the triangle ABC, calculation of the area of the triangle ABC, calculation of the barycenter of the triangle ABC, calculation of the general, reduced, and segmentary equation of the segment AB. Given the information above, answer the following question:

The test is about geometry.
The test is about algebra.
The test is about trigonometry.
a) Only afirmation I is correct.
b) Only afirmation II is correct.
c) Only afirmation III is correct.
d) Afirmations I and II are correct.
e) Afirmations II and III are correct.