Answer:
b
Step-by-step explanation:
Are you asking about the percent of change?if so the answer is 33.3%.
Answer:

Step-by-step explanation:
in a cube, the diagonal is the length of a side times square root of 3
Another way to prove triangles are similar is by SSS, side-side-side. If the measures of corresponding sides are known, then their proportionality can be calculated. If all three pairs are in proportion, then the triangles are similar.