Well you technically need 3 dimensions and know the shape of the pool if you gave me that i could help you!!<span />
2 units
........................................................................................
Answer:
Step-by-step explanation:

The A/= it means the answer is okay.
Answer:
"like terms"
Step-by-step explanation:
It looks like you're asking for the word or phrase that has the meaning you have given. Such terms are called <em>like terms</em>.