How to use this collection
- Solving triangles? Start with the triangle solver.
- Need distances, midpoints, or slopes? Use coordinate geometry.
- Need proportional resizing for images, slides, or video frames? Use Aspect Ratio first when one side is fixed and the other side still needs to be solved.
- Need a printable grid? Use graph paper.
Recommended (top 3)
A quick set for most geometry problems.
Tools
- Graph paper PDF generator.
Generate print-ready SVG graph paper in millimeters: Cartesian, polar, log-log, semilog, and isometric grids.
- Number line & interval visualizer (inequality shading).
Shade inequalities and interval unions on an interactive SVG number line.
- Quick charts from pasted data — scatter / box plot.
Paste spreadsheet data to generate scatter and box plots instantly.
Calculators
- Triangle Solver (SSS, SAS, ASA, SSA) with steps.
Solve a triangle from sides and angles with SSS, SAS, ASA/AAS, or SSA.
- Pythagorean theorem calculator.
Solve and visualize a²+b²=c² with a right-triangle diagram and area model.
- Coordinate geometry calculator – distance & lines.
Compute distance, midpoint, slope, line equations, circles, and intersections with full working shown beside.
- 2D geometry calculator – area & perimeter of shapes.
Compute area and perimeter for rectangles, circles, triangles, trapezoids, and regular polygons with formulas.
- 3D Geometry Calculator (Sphere, Cylinder, Cone, Prism).
Compute volume and surface area for spheres, cylinders, cones, rectangular and regular prisms—with example inputs.
- Vector Calculator — dot/cross, projection, angle, area.
Compute norms, dot, cross (2D/3D), projection, angle, areas, and triple product with steps logs.
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