Delta, is just a Greek letter very used in Math. It's meaning depends on the context.
But a very common meaning, specially for capital delta ( a triangle) is difference. For instance, a temperature Delta usually means the difference of the temperatures of 2 objects. In your case, it probably means the difference of the given values
Chat with our AI personalities
Typically, delta means "change in" in math.
Graphic designers use math because they have to measure out models to a certain scale. They need to know how to calculate exact measurements.
Now a days, learning has become much easy. You can get help with concepts of math online. You can search for math help or geometry help online and get a learning from online. Try typing in "cool math 4 kids" in your search engine. That's a great website for stuff like that, but I can't think of their address right now.
The exact value of 60 degrees would be 1/2. This is a math problem.
Tangent, in geometry, is used to describe when figures have only one point in common. In Trig. tangent is applied to triangles.