How could Ericka have used the decimal that she wrote for 1/3 to find the decimal for 2/3

The decimal she found for 1/3 will help her find 2/3 because you multiply decimal for 1/3 by 2 to get 2/3

Step-by-step explanation:

In this exercise we have to use the knowledge of triangles to calculate the distance that one of the sides has:

Letter C

Some information given in the statement about the triangle:

So performing the calculation we have:

See more about triangles at link