An obtuse triangle
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Since all the angles in a right triangle add up to 180 and we already have 145, this means that the third angle must be 35 degrees.
Complementary angles total 180 degrees. So if the obtuse angle is 145 degrees, the acute angle is 35 degrees.
no a reflex angle is 145
An obtuse scalene triangle.
A triangle with one angle over 90 degrees is an obtuse triangle.