Answer: 
Step-by-step explanation:
1. By definition, you have if
, then 
2. Keeping this on mind, you must follow the proccedure shown below:
- You have that:

Where:

- Substitute values into
. Then, you obtain:
Answer: so you do length times width times height and then you divide by two
Step-by-step explanation:
Answer:
(3,0)
Step-by-step explanation:
True, bc they add up to 180 and are the same size.