Which expression can be used to determine the length of segment ab?

Step-by-step explanation:

Given segment AB and point A with coordinates (x₁,y₁) and point B(x₂,y₂) as end points in the segment, the distance between the points forms the length of the segment AB and can be determined by the expression;

d=√ (x₂-x₁)² + (y₂-y₁)²

20

step-by-step explanation:

ca = ec

cpctc makes it so that corresponding parts of the triangle you proved to be equal are equal, the other options aren't part of the part of the triangles you proved to be equal.