GMAt Prep question - Triangles - DS

[sankofar]

In isoceles triangle RST, what's the measure of angle R?

Statement 1: Measure of angle T = 100

Statement 2: Measure of angle S = 40

[Mayank Singh]

IMO A..

1. If T =100 then T is the non equal angle( since no other angle can be 100 ), hence sufficient information.

[sankofar]

Got it

[bento]

And based on statement 2, if Angle S = 40, then angle R can equal 40 or angle R can equal 100