Quick question about isosceles triangles.

Test Preparation
1

<p>Hey all;</p>

<pre><code> I was thinking that if you have an isosceles triangle ABC, the middle letter denotes the vertex (not one of the two same) angle, so in this case B would be the vertex. I just did a review question that seems to not acknowledge this (so the answer was D on a quant comparison)…which leads me to believe that this isn’t a formal notation but rather a “best practice” kind of thing I must have picked up somewhere. Is this the case? If so I’ll just delete that little tidbit from my memory so it doesn’t screw me up on a question like this; thanks.
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2

<p>I’m not familiar with that as a convention.</p>

3

<p>I’ve never heard of that.</p>

4

<p>Thanks; I wonder where I picked that up lol.</p>