# carielewyn

## Carie Lewyn

(no subject)
is 0 degrees an acute angle?

is it a straight angle?

is it even an angle at all?

0 degrees, I assume this goes for radians as well, is a straight line. If two lines have zero degrees of difference than they are defined by the same linear equation. Because I line runs in two directions, it can also be viewed as being a 180 degree line. If they are rays (only traveling in one direction, then the directions must be stated to determine whether or not it is 0 or 180. If they just say zero and it isn't a line or line segment, then assume they mean a ray in the same direction as the base. Why does it matter?

it matters cuz my son and i dissect things to death :)

i mean like a full rotation is a name they give an "angle" even though it just looks like one ray but technically it's 2

so what's the label for the opposite of that? like when it starts out a rotation but isn't at any angle yet?

everywhere i look it says that an acute angle is "less than a right angle" well, -34 is less than 90 so is that an acute angle? is zero?