# Earthwork Cross-section Area

Earthwork cross-section area can be for small or large areas.

## Earthwork Cross-Section Area formula

\(\large{ A_c = \frac{ 1 }{ 2 } \; \sum_{i = 1}^n \; x \; \left( y_{i + 1} \;-\; y_{i - 1} \right) }\) |

### Where:

\(\large{ A_c }\) = area cross-section

\(\large{ x_i }\) = horizontal axis

\(\large{ y_i }\) = vertical axis

\(\large{ n }\) = number of points on cross-section

Tags: Equations for Area Equations for Earthwork Equations for Surveying