An angle of 75 degrees is an acute angle
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They measure 105 degrees each.
The third angle is 75 degrees. The 3 angles of a triangle add up to 180 degrees. Therefore: 45 + 60 + 75 = 180.
105 degrees Supplementary angles add up to 180 degrees.
The complementary angle is 15 degrees. Complementary angles sum to 90 degrees, and 90 - 75 = 15.
It is an acute angled scalene triangle.