SOLUTION: Hi i need help with this question: Determine which property is demonstrated: m∠BZL+m∠LZF = m∠LZB+m∠FZL

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Question 1117388: Hi i need help with this question:
Determine which property is demonstrated: m∠BZL+m∠LZF = m∠LZB+m∠FZL
Found 2 solutions by stanbon, ikleyn:
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Determine which property is demonstrated: m∠BZL+m∠LZF = m∠LZB+m∠FZL
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angle BZL is just another way of designating angle LZB
angle LZF is just another way of designating angle FZL
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So the two sides are not only equal, they are identical.
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Cheers,
Stan H.
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Answer by ikleyn(52914) About Me  (Show Source):
You can put this solution on YOUR website!
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Commutative property of adding     (of adding angle measures,  in this case).