Pat wants to measure the length of a table. She'll use a measuring tape. Which units should Pat use to express the length?

i think 1: 2

step-by-step explanation:

thats not a system of equations, that is a solution

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.