Another Isosceles Triangle Problem

  • Thread starter Bashyboy
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  • #1
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Homework Statement


In isosceles triangle RST, RS = RT. Which side of the triangle is the base? Which angle is the vertex angle?



Homework Equations





The Attempt at a Solution


I believe the base is RT, and the vertex angle is S. I don't know the proper notation to name the line segment and the angle, though. How would you write the answer properly?
 

Answers and Replies

  • #2
Dick
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Why do you think that? Draw a triangle and label the vertices R, S and T. RS is the segment connecting R and S. RT is the segment connecting R and T. What's the segment that is the base?
 
  • #3
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My goodness, I have made a few good blunders in these past two posts. It should actually be RS = ST
 
  • #4
Dick
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My goodness, I have made a few good blunders in these past two posts. It should actually be RS = ST

Ok, then I'll agree with you. Base is RT and the vertex angle is the angle at vertex S. Sometimes you'll see that written as [itex]\angle RST[/itex].
 
  • #5
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Thank you so much. Sorry for all of the posts--I have a great geometry textbook I found, but no answer key to accompany it.
 

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