acute
57o
It is a right angle.
a acute angle
A right-angled triangle.
A right triangle because the 90 degree angle creates a corner.
47
0.766
57o
1.836
33
a acute angle
It is a right angle.
An obtuse angle
Complementary angles add up to 90°. The complementary angle of 33° is therefore 90 - 33 = 57°.
It is: 147 degrees because 147+33 = 180 degrees
327 degrees (or -33 deg).
A straight line is equal to a 180 degree angle.