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fjord
A hill, or a contor map both involve lots of slopes. So do ski resorts.
First you convert the number into a decimal.Then you multiply it by 360.Let's say you want 2% of a circle. That means you want 2% of 360 degrees. 2% is .02. 360 * .02 = 7.2. So 2% of a circle is 7.2 degrees.You can also set it up as a ratio.x/360 = 2/100 is a way of saying (what) out of 360 degrees equals 2 out of 100? The way you solve this is to cross-multiply. Take the top of one and multiply by the bottom of the other and vice-versa.x * 100 = 2 * 360100x = 720x = 720/100x=7.2Same answer, different method. :)Do you mean percent as in percent slope or grade like on a hill? Say you are climbing a hill with 10% grade, that means a vertical height of 1 unit for every 10 units horizontal distance. For small slopes, less than ten percent , you divide percent by 100 to get slope and multiply by 180/pi to get degreesFor example if hill is 5% slope that is 5/100 x (180/3.14) = 2.87 degreesFor bigger slopes you need to use trigonometry - find angle whose tangent is equal to the slopeFor example if hill is 100% slope that is 100/100 = 1 and angle whose tangent is 1 = 45 degrees
Mathematically, there is no unit for slope. If you are taking something like a rise of 40cm over a run of 10cm, the cm cancel out and the slope is simply 4 Once you get off the math homework paper, however, slopes are often given as over a certain distance. If dealing with a hill on a road, you might be given a slope of "18 inches per 100 feet traveled" or something along those lines. ■
If a line has a negative slope it is going 'down hill' and if it has a positive slope it is going 'up hill'