Quick question about angles for an equilateral triangle raised garden bed

 Forum topic by hypnos posted 04-11-2010 12:39 AM 9231 views 0 times favorited 4 replies
 hypnos28 posts in 3223 days 04-11-2010 12:39 AM I should have paid more attention in geometry class. I have three 2×10 10’ boards, what angle should I cut on one end of each board with my circular saw to make an equilateral triangle? Thanks! -- David P., Kansas City

4 replies so far

 Les Casteel160 posts in 2843 days #1 posted 04-11-2010 01:09 AM any triangle contains 180 degrees total. so 180/3 = 60 for each intersection. Then 60/2 =30 so you cut each board on the ends at 30 degrees. Good Luck! -- Les, Arkansas, www.woodthatrocks.com Wood_smith254 posts in 2809 days #2 posted 04-11-2010 01:09 AM but wouldn’t you cut both ends of each board? -- Lloyd Kerry; creator of the Kerry-All Pouch, http://www.kerrywoodworking.com patron13578 posts in 3125 days #3 posted 04-11-2010 01:11 AM if you want to overlap them , 30 deg all ends , shopgirl is right , 60 deg is right for a miter . all triangles equal 180 deg inside . your picture didn’t show for a while shopgyrl ,so i edited mine . -- david - only thru kindness can this world be whole . If we don't succeed we run the risk of failure. Dan Quayle hypnos28 posts in 3223 days #4 posted 04-11-2010 01:25 AM Yeah, I figured out 30 degrees on the saw would do it if I cut each of the ends, I was envisioning somehow being able to just cut one end on each board so I’d be able to drive screws through a face into end grain, being able to drive as long of screws as I want – just cutting one end of each end. That’s what had me a little stumped seeing the angles. I may just have to cut each end and rely on a triangular post between each point to drive the nails in… -Edit I just refreshed and saw the first triangle you posted shopguryl – that’s what I was thinking, except I thought I could somehow leave one end uncut, I see that would blunt the points of the triangle. -- David P., Kansas City