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→Expressing slope
Expressing a slope in degrees requires using the ''tangent'' trigonometric function.
Expressing a slope in degrees requires using the ''tangent'' trigonometric function.
e.g.:<math>\tan \theta =\left ( \frac{4\ m}{12\ m} \right ); \theta =\tan^{-1}\left ( 0.33 \right )=18.3^{\circ}</math>
e.g.:<math>\tan \theta =\left ( \frac{4\ m}{12\ m} \right ); \theta =\tan^{-1}\left ( 0.33 \right )=18.3^{\circ}</math>
'''[[Slope_table| Quick reference table]]'''
==Normal range of slopes==
==Normal range of slopes==