Atriangle has one angle that measures 11 degrees, one angle that measures 47 degrees, and one angle that measures 122 degrees. what kind of triangle is it?

  obtuse

Step-by-step explanation:

The largest angle is more than 90°, so the triangle is called an "obtuse" triangle.

Here are the classifications based on the measure of the largest angle:

  < 90° -- acute triangle

  = 90° -- right triangle

  > 90° -- obtuse triangle . . . . . like the one in this problem statement

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