Try to start by reading the manual it came with. If it didn't come with a manual, then your teacher in school will teach you how to use it for specific commands. Otherwise it's just like using a regular calculator but with the ability to do more things, what do you need to know on it?
I don’t know but I’m not gonna say anything so you don’t get it wrong
Answer:
you would calculate angles with a protractor by using degrees.
Step-by-step explanation:
the center would be put at one corner and then u measure the side you want to know the angle of. hope this helped.