How to use this collection
- Solving triangles? Start with the triangle solver.
- Need distances, midpoints, or slopes? Use coordinate geometry.
- Need a printable grid? Use graph paper.
Recommended (top 3)
A quick set for most geometry problems.
Tools
- Graph paper PDF generator | Cartesian, polar, log-log | CalcBE
Generate print-ready SVG graph paper in millimeters: Cartesian, polar, log-log, semilog, and isometric grids with How it's generated steps and CSV export.
- Number line & interval visualizer (inequality shading)
Shade inequalities and interval unions on an interactive SVG number line. Visualize algebra steps, export SVG/PNG, and copy share-ready URLs for lessons.
- Quick charts from pasted data — scatter / box plot + regression (with steps, PNG/PDF)
Paste spreadsheet data to generate scatter and box plots instantly. Includes OLS, Theil–Sen, and polynomial regression with step-by-step math plus PNG/PDF export.
Calculators
- Triangle Solver — Law of Sines/Cosines (SSA ambiguous) | CalcBE
Solve triangles with SSS, SAS, ASA/AAS, and the ambiguous SSA case. See step-by-step formulas, switch degree/radian output, pick decimal places, and view an annotated diagram. No sign-in.
- Pythagorean theorem calculator | Diagram & area model | CalcBE
Solve and visualize a²+b²=c² with a right-triangle diagram and area model. Find any side, check a triangle, or measure distance with exact radicals, steps, shareable URL, LaTeX, and SVG.
- Coordinate geometry calculator – distance & lines | CalcBE
Compute distance, midpoint, slope, line equations, circles, and intersections with full working shown beside the results and a live coordinate plane diagram.
- 2D geometry calculator – area & perimeter of shapes | CalcBE
Compute area and perimeter for rectangles, circles, triangles, trapezoids and regular polygons from side lengths, radii or heights, with formulas shown for homework and quick design checks.
- 3D Geometry Calculator (Sphere, Cylinder, Cone, Prism) | CalcBE
Compute volume and surface area for spheres, cylinders, cones, rectangular and regular prisms—with example inputs, step-by-step formulas, and a shareable result link.
- Vector Calculator — dot/cross, projection, angle, area, triple (with steps) | CalcBE
Compute norms, dot, cross (2D/3D), projection, angle, areas, and triple product with step-by-step logs. 2D diagram, shareable URL, LaTeX and CSV export.