Recent content by hollo

hi it isn't homework it's for a vent I'm making for an extractor fan in my bathroom :o

The distance from the center C to either focus is f = (major axis)*(eccentricity), which can be expressed in terms of the major and minor radii- f = sqrt[(major radius)^2 - (minor radius)^2]

thx.

Homework Statement i need to draw an ellipse with a circumference of 59cm and a minor axis of 12cm. does anyone know how to draw one using the piece-of-string-looped-over-two-nails method, ie how long would the string need to be & how far apart should the nails be? i'll also need to know the...