SOLUTION: I need to state the property that justifies the following statement: If 80=m∠A, then m∠A = 80 I need guidance as to how to determine which property is being used an

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Question 1121839: I need to state the property that justifies the following statement:
If 80=m∠A, then m∠A = 80
I need guidance as to how to determine which property is being used and why. Thank you
Found 2 solutions by Alan3354, ikleyn:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
There are only 4 to choose from.
Check all of them, see what you think.
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I don't think it's important to know the name of it, if you know that:
a*b = b*a
Who cares what it's called?
IMO, this is something young students find discouraging, and causes them to lose interest in math.

Answer by ikleyn(52752) About Me  (Show Source):
You can put this solution on YOUR website!
.
The property 


    "if a = b then b = a"


is called the "symmetry property".