The term "grade," in the context of slope, generally refers to the steepness or incline of a surface, such as a road, hill, or ramp. It is often expressed as a percentage or ratio, indicating how much vertical rise occurs over a horizontal distance. ### Here are key points about grade: 1. **Percentage**: Grade can be expressed as a percentage, which is calculated by dividing the vertical rise by the horizontal run and then multiplying by 100.
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