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angles?


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#1 toomanytoys84 ONLINE  

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Posted February 15, 2015 - 12:20 PM

I never paid attention in geometry.

I am doing trim. I have a wall that goes

Straight 45 straight. How do I figure out the angle to cut my trim.
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#2 KC9KAS OFFLINE  

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Posted February 15, 2015 - 12:26 PM

A squared + B squared = C squared.

 

Triangle 6" base and 6" leg... What is the length of the diagnal?

 

6 X 6 = 36 + 6 X 6 = 36

 

36 + 36 = 72

 

Square root of 72 is 8.485 "   The diagnal is 8.485" this example.


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#3 KC9KAS OFFLINE  

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Posted February 15, 2015 - 12:27 PM

OH, I thought you were working a traingle....

 

The 45* wall will have both left & right trim cut at 22.5*


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#4 toomanytoys84 ONLINE  

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Posted February 15, 2015 - 12:36 PM

You are awesome. How do you figure that?

I am not good at angles
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#5 AfterShock95 OFFLINE  

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Posted February 15, 2015 - 12:38 PM

45 divided in half
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#6 KennyP ONLINE  

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Posted February 15, 2015 - 12:39 PM

It's half of 45°. You beat me Aftershock!


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#7 toomanytoys84 ONLINE  

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Posted February 15, 2015 - 12:42 PM

That makes perfect sense....
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#8 KC9KAS OFFLINE  

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Posted February 15, 2015 - 12:44 PM

You are awesome. How do you figure that?

I am not good at angles

Well, I wasn't that good in school, but have messed with a lot of math/geometry business over the past 45 years, and I just remembered (some) if it!!


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#9 Cat385B ONLINE  

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Posted February 15, 2015 - 12:50 PM

Rip a stud at a 45 and fill that center gap on both sides if you're sheet rocking it. They make corner bead at that angle for mudding, if you need it.
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#10 KC9KAS OFFLINE  

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Posted February 15, 2015 - 12:54 PM

Rip a stud at a 45 and fill that center gap on both sides if you're sheet rocking it. They make corner bead at that angle for mudding, if you need it.

He is past that...He is putting the trim on!!


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#11 Jazz OFFLINE  

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Posted February 15, 2015 - 01:37 PM

wood filler is your friend


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#12 UncleWillie ONLINE  

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Posted February 15, 2015 - 02:10 PM

I wouldn't trust that the wall is actually true. Get something like this and find each angle. Don't tryst that the other carpenter could do math either./


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#13 lyall OFFLINE  

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Posted February 15, 2015 - 02:22 PM

Screenshot.png

 

hope this helps


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#14 hamman OFFLINE  

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Posted February 15, 2015 - 03:29 PM

Neither was, or am I. I usually have to cut three times and it's still to short !    Glad these guys got you the help.                                        Roger.


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#15 Nxt2doc OFFLINE  

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Posted February 15, 2015 - 03:36 PM

Angles on walls in homes are rarely as precise as the angle on your miter box. Have you ever used a coping saw. This couple of minutes might very well be worth your time.  https://www.youtube....h?v=W8ccy0wLErQ This allows for all of those inside corners that invariably wont match your miter saw.


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