---
tag: 0S29Y4ZW0Y
kind: concept
name: Surface area
msc: [28A75]
uses: [0ZG9QF40HE]
sources:
  - url: https://en.wikipedia.org/wiki/Surface_area
    locator: lead section
same_as:
  wikidata: Q1379273
  wikipedia: Surface area
---

## Summary

The surface area of a surface is a measure of its two-dimensional size.
For a [[parametrised surface|0ZG9QF40HE]], it is the double integral of the length of the normal vector over the parameter domain.