Add Multiple Curve Lengths

I’ve created this simple definition below as an example. I have multiple curve lengths and I want to add all the lengths up to get a total length. I have no idea how to go about this.

Ultimately I have a Grasshopper definition I use to give me a generic steel structure based on the desired shape. I want to use this to pull my curve lengths for an initial idea of how much steel I would need. (17.1 KB)



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Awesome, I was looking in the math but somehow missed Mass Addition.

Thanks for the help.