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Math·Geometry and Trigonometry·Lines, angles, and triangles
easy
In triangle RST, the measure of angle R is 29 degrees. Which statement provides sufficient information to prove that triangle RST is isosceles?
A
The measure of angle S is 151 degrees.
B
The measure of angle S is 61 degrees.
C
The measure of angle S is 58 degrees.
D
The measure of angle S is 29 degrees.