I feel like I'm so close to the correct answer for this problem, but I just can't seem to bring it all together. Code (Text): To find the V[sub]RMS[/sub] of an AC sine wave, you use the following forumla, where V[sub]max[/sub] is the maximum amplitude: V[sub]RMS[/sub] = V[sub]max[/sub] / sqrt(2) To find the V[sub]RMS[/sub] of an AC triangle wave, you use: V[sub]RMS[/sub] = V[sub]max[/sub] / sqrt(3) In one sentence, give a good qualitative reason why sqrt(3) is appropriate for the triangle wave. I have a bunch of vague and un-elegant ideas, but not really one good sentence. I've been Googling on the subject and coming up with crest factor (peak / RMS), which is sqrt(3) for triangle waves and sqrt(2) for sine waves. But I have yet to bring it all together. Any help is appreciated.