Enter an angle to find its complement and supplement.
How to use Angle Calculator
- Mode: Select Complementary, Supplementary, or Polygon Internal Angle.
- Input: Enter the known angle or number of polygon sides.
- Result: See the calculated missing angle value.
About Angle Calculator
The Angle Calculator helps determine unknown angles in various geometric figures. It can solve for complementary (adds to 90°) and supplementary (adds to 180°) angles.
It also assists in finding internal angles of polygons (e.g., measuring the corner of a pentagon).