SOLUTION: My daughter had a quiz and the following answers were marked incorrectly and I need to understand why so I can help her. Her teacher said the answer should have been "more than one

Question 1066828: My daughter had a quiz and the following answers were marked incorrectly and I need to understand why so I can help her. Her teacher said the answer should have been "more than one triangle"
30, 60, 90 (degrees). Her answer was...This is a traingle and she showed her work of adding the three angles to equal 180 degrees.
50, 41, 89 (degrees). Same as above
18.9, 71.9, 89.2 (degrees). Same as above
Answer by josgarithmetic(39618) (Show Source): You can put this solution on YOUR website!
What are the questions?
What are the instructions?
Exactly what is given?

You listed three degree-measure designations for some triangles. What about them?
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