I need help to figure how to do this problem: 10 x 1:12.
My goal actually is to find the height of a ramp where the slope of
each section is 1:12 (what does that mean?) and the base is 10.00 m.
Thank you,
Tone
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If the base were 10 m only, what then is the corresponding height on
the ramp?
Imagine again the same right triangle but the horizontal leg is 10m
only. How do you get the height of this smaller right triangle?
One way is by proportion.
(height):(base) = (height):(base)
1:12 = h:10
That is the same as:
1/12 = h/10
Multiply both sides by 10,
10/12 = h
h = 10/12 = 5/6 = 0.8333 m.
: Hi,
: I need help to figure how to do this problem: 10 x 1:12.
: My goal actually is to find the height of a ramp where the slope of
: each section is 1:12 (what does that mean?) and the base is 10.00 m.
"What does that mean?" - No offense, but I think it means you need
to go back to your math teacher and explain that you don't understand
the problem.
A ratio is a fraction, in this case it is dealing with a slope, so
think of it as "rise over run". How far up (or down) does the slope
change over the distance it goes. 1:12 will go up 1 inch for every
12 inches or 1 foot for every 12 feet or 1 mile for every 12 miles.
In your case, it will go up 1 meter for every 12 meters.
10 x 1:12 = 10 x 1/12
--
-davec
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>
>Hi,
>
>I need help to figure how to do this problem: 10 x 1:12.
>
>My goal actually is to find the height of a ramp where the slope of
>each section is 1:12 (what does that mean?) and the base is 10.00 m.
>
>Thank you,
>Tone
The slope is 1 / 12 which means for every meter along the base it
rises 1 /12 meter. So if its base is 10 meters long it rises....?
--Lynn
1:12 --> rise/run --> for every unit in the horizontal direction it
rises 1/12 of that same unit.
So, if the base is 10 instead of 12, the height is 10/12.
I want to thank you all that responded to the question. I really
appreciate you taking the time to help me.
Regards,
Tony