straight angle
a little angel
Complementary angles add up to 90°. The complement of 31° is 90 - 31 = 59°.
1. Protractor 2. Angelizer 3. Angel Finder Can find these on amazon or the like.
It depends how you look at it. If you were to see an angel, would you automatically determine it is a male or a female? I guess you could believe either way you want to.
Vertex angle: 180-42-42 = 96 degrees
acute angel
43 degrees
60 degrees
If you mean by straight angel an angel of magnitude 180 degrees, then the answer is no. The sum of the three interior triangle angels is 180 and not only a single angel.
The other two angles are also 40 degrees and 140 degrees.
A right angle measures 90 degrees.
an angle that measures less than 80 degrees
An acute angle measures <90o
The angles of an equilateral are the same and since the interior angles of a triangle equal 180 degrees, we know that 180/3=60 degrees.
150 degrees
There is no such triangle because all 3 angles in any triangle must add up to 180 degrees and no more or no less.