Help finding angle for a cut.

[Rwham]

I am building a pair of saw horses going by these plans. 

http://www.woodmagazine.com/file/13246/download?token=wNXfaCEO

the board that goes diagonal across the saw horse has an angle cut so it fits flush. How would I determine the angle? 

[Tpt life]

I don't pay for a sub to see the picture. I am prone to find a sheet of ply and draw the picture either scaled or to size. This helps me with the math even when I use math to figure angles. 

[nginear]

Another way would be to start with a square piece of wood, hold it in place, then mark the angle directly onto the wood.  Simple matter then of cutting it out.  Or, make it purposely oversize, put in place, and use a flush cut bit in a router to make it flush.

Like C Shaffer, not paying for a sub to see the pic.  Sorry.

[wdwerker]

Put the board in place and cut it close flush with a handsaw, multi-tool etc. then sand it flush. It's a sawhorse, not a piece of furniture.

[Eric.]

[CandorLush]

The angle doesn't matter, even if you knew the exact angle they used, it would probably be wrong when you built yours.

Just build the frame, lay the support board across and scribe your cut lines and it will fit right to the actual horses in your hands

This is a non login look
http://www.woodstore.net/plans/shop-plans/tool-bases-stands/4256-Folding-Sawhorses.html

[Tom King]

I use sawhorses all the time.   That's the worst design for sawhorses I've ever seen-even dangerous.

I have a number that I've made, but even use the fold-up plastic ones sometimes, like on top of this scaffolding.  I'd buy the plastic ones before I'd use the ones that fold up sideways, much less waste time building them.