Triangulate the Polygon

Any polygon can be split into triangles from one vertex.

Tap to triangulate

Draw {{ s1_n - 3 }} diagonals from a single vertex to form triangles.

{{ idx + 1 }}
Sides: {{ s1_n }}
Triangles: {{ s1_diagonals.length + (s1_diagonals.length > 0 ? 1 : 0) }} / {{ s1_n - 2 }}

Interior Angle Sum

Formula:

Slide to match
Find the polygon with an interior sum of {{ s2_targetSum }}°
Sides (n) = {{ s2_n }}
{{ (s2_n - 2) * 180 }}°
312

Exterior Angles

The sum of exterior angles is always 360°.

Slide to shrink

Shrink the polygon to see how all the exterior angles come together to form a full circle.

{{ s3_shrink === 100 ? '360° Complete!' : 'Shrink to center' }}

Regular Polygons

Calculate individual angles for a Regular {{ s4_config.name }}.

Drag to calculate
Regular {{ s4_config.name }}
Sides () = {{ s4_config.n }}
1. One Exterior Angle
{{ s4_zones.z1 || 'n' }}
{{ s4_zones.z2 }}° ?
2. One Interior Angle
{{ s4_zones.z3 }}° Ext.
Angle
{{ s4_zones.z4 }}° ?
Number Pool
{{ val }}
🏆

Polygon Master!

You've mastered the angles of polygons, from splitting them into triangles to calculating their exact corners.

Interior Sum
Exterior Sum
360°
{{ dragState.item }}