To measure geometrical angles
protracter
A protracter
If your talking maths, it would be a protracter.
Use the Pythagorean Theorem: a2 + b2 = c2
To measure and construct angles
Try a protracter.
get a protracter
No.
usea protracter
a thing used to measure a degrees of an angle BY asiamarie Spencer
can be used for ruler, sharpners, protracter etc...
With the protracter, its 180 degrees!!