# Solve for a side in right triangles

Given one side length and an acute angle in a right triangle, find another side using trigonometry.

If you're seeing this message, it means we're having trouble loading external resources for Khan Academy.

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

Main content
# Solve for a side in right triangles

### Problem

Given one side length and an acute angle in a right triangle, find another side using trigonometry.