Geometry

Calculate area, volume, solve triangles, vectors, and study the trigonometric unit circle.

Calculate the area of polygons and circles, or the surface area and volume of 3D solids.

Solve triangles using Law of Sines, Law of Cosines, and Heron's formula with dynamic SVG drawings.

Calculate midpoint, distance, slope, and line equations between two points with step details.

Calculate magnitude, dot product, cross product, and angle between 2D or 3D vectors.

Compute trigonometric (sin, cos, tan) and inverse functions with interactive right triangles.

Visualize and learn trigonometric definitions interactively by dragging the angle on a unit circle.