Respuesta :
Answer:
 3
Step-by-step explanation:
Points A and B lie on the horizontal line y = 1. The length of segment AB is then the difference of the x-coordinates of the points:
 5 -2 = 3
The length of side AB is 3 units.

Answer:
 3
Step-by-step explanation:
Points A and B lie on the horizontal line y = 1. The length of segment AB is then the difference of the x-coordinates of the points:
 5 -2 = 3
The length of side AB is 3 units.