If a triangle has angles measuring 46 degrees, 51 degrees, and 83 degrees, what type of triangle is it?
A. Acute triangle
B. Right triangle
C. Small triangle
D. obtuse triangle
D. Obtuse triangle
In an obtuse triangle, one of the angles is greater than 90 degrees. In this case, the angle measuring 83 degrees is greater than 90 degrees, making it an obtuse triangle.