Suitable sampling rate for triangle wave I know this is a fairly simple question but I can't convince myself of the right answer. 

For a 5KHz triangle wave, being sample at Fs sampl/second, what's a suitable choice for Fs such that an accurate reconstruction of the cont. time wave can be generated?

My first thought was to satisfy Nyquist, so sample at twice at the wave rate. But, is there something I'm missing here? Like for the square wave, where technically the sample rate is infinite for a perfect reconstruction, is there something similar here?

Thanks!
The 5kHz is the repetition frequency and it's not the maximum frequency of your signal or its bandwidth and your signal isn't band-limited but it has small frequency content over very high frequencies which lead to the Fat32 answer.

but there are other sampling and reconstruction scheme for non band-limited signals like Finite Rate of Innovation (FRI) which could perfectly reconstruct certain families of non band-limited signals like piecewise polynomials (which your signal exactly fits in) with finite sampling rate (in your case 6 sample per each repetition).