cad/cam help

[claustrophobia9]

hey, for an exam in my CAD/CAM (computer aided design(or drafting)/computer aided modeling(or manufacturing) and we have to use the 3d modeling program "i-deas 9" to recreate this speaker: sorry about how small it is, i have to make the one without dials, the only problem is that the entire thing is curves, and im not great at math, how do i find the radius of a section of a circle without knowing the angle/rotation of the section?

[Hoppy11]

Damn.. umm.. have fun, lol. Sorry I can't help. It has to be exact?

[claustrophobia9]

Originally Posted by Hoppy11

Damn.. umm.. have fun, lol. Sorry I can't help. It has to be exact?

it has to be "elegant" which means that it demonstrates the shape fairly accurately without 100 steps, so simple yet complex... i know how to make it all up to the curves, ive got the basic figure (very sharp edges, more like a 3d polygon) in 2 steps but i need to know the radius so that i can cut the fat off of it and make it look good.