calculating "rise" or "run" without a trigonometry calculator  and is TRIG even required?
i'll admit it. i'm having a problem even thinking about this issue at the moment. and as i recall in the exam i seem to have bumbled it under the time pressure. or at least i think i may have.
in the past i've always used a simple numerator and denominator and some other voodoo to calculate rise or run for slopes or stairs or whatever. i don't ever recall having to use a trig calculator in standard architectural work. i'm so used to doing this i do it without thinking and never figured out how to use the trig calculation portion on the practice exam.
i tried it once and i couldn't figure out if i had to hit the TRIG operation first and then the number or what i was supposed to do.
anyone mind refreshing my addled mind on how i would calculate the rise of something that was 50 feet across and a 2.5% slope or something  without using the trig calculator? or say calculate the percent slope from being given 80 feet across and a 1.5' (18") rise?
anyone willing and able to put in the time to post up what would be required if using the calculator in the software?
and as indicated above can anyone confirm whether or not i would /need/ to use the trig portion of the calculator in the exam?
THANKS

yeah. thanks man. i sort of looked at the trig calculator and then in the exam i saw this and brain locked half way through. if it was presented in inches somewhere presumably you would just convert to what was required in the answer. ...
ok. it’s coming to me now. i guess i sometimes write 1/100 for 1% or 2.5/100 for 2.5% instead of 0.01 or 0.025 and at some point it started to look weird to me. i guess i got it right.
so. trig would be for s luminous flux (or whatever) problem? or anything else i wonder?
ok. thanks it’s /great/ to put that to /bed/... 
hey theodore
one more one here please?
i think i got to cross multiplying and saw the % symbol in my triangle sketch and thought trig calculator for some dumb reason.
anyway  can i use SOHCATOA if i wanted to find the hypotenuse in this case? i mean in the instance above that would be:
Cos 2.5 = 50’/hypotenuse in which case i would need to use the trig calculator? rearrange it and hyp = 50’/Cos 2.5 and just run Cos 2.5 to get the value?
i mean by definition i can’t use slope for the hypotenuse basically? sort of more complicated than i would expect in some ways... 
sohcahtoa can give an angle or the length of any leg. i didn’t want to use the calculator and reviewed it quickly.
then somehow on the exam i got mixed up seeing “1/100” in my slope = rose/run calculations thinking i was doing a this is to this as this is to that cross multiplication (forget what this is called).
anyway  sort of an obtuse thread but it could be cool to know you don’t (or do) have to use the trig function on the calculator. or that you can or can’t use sohcahtoa (which i find easier)...
THANKS for the help... 
OK. thought about this one a bit.
slope = rise / run (and its iterations) is good for deriving any leg of triangle percent slope or any rise or run for a RIGHT TRIANGLE given two of the others.
SOHCAHTOA is good for the same for any right triangle or any other triangle in a similar manner. it requires the derivation of SIN degree, COS degree or TAN degree using a calculator.
what type of question or whether it is necessary to use the calculator on this exam would be helpful to know. also, if it is required it could be helpful for others if someone posted up how one uses this function on the implementation of the calculator. i tried, think i got it but it would be good to have someone post this for others.
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