Main content

## Approximating areas with Riemann sums

# Riemann sums review

Review how we use Riemann sums and the trapezoidal rule to approximate an area under a curve.

If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains ***.kastatic.org** and ***.kasandbox.org** are unblocked.

Main content

Review how we use Riemann sums and the trapezoidal rule to approximate an area under a curve.