Geometry Problem Solver — Free Step-by-Step Proofs, Triangles & Coordinates
Triangle problems, proofs, area and volume, coordinate geometry, transformations — photo or type your geometry problem and get a worked solution with diagrams described step-by-step.
How It Works
Photograph or type the problem
Most geometry problems include a diagram. Photo input lets ScanSolve read the diagram and the question together.
ScanSolve reads the figure
Identifies given information, marked angles, parallel/perpendicular markings, and what the problem is asking for.
Build the solution
For computational problems: substitution and arithmetic. For proofs: a numbered two-column or paragraph proof with each statement and its reason.
What Makes ScanSolve Different
Proofs in two-column or paragraph form
ScanSolve writes proofs in the format your textbook expects — two-column with statements + reasons, or paragraph form for IB-style courses.
Reads diagrams from photos
Most geometry problems are useless without the figure. ScanSolve’s 2026 vision models read marked-up diagrams including angle marks, side ticks, and parallel arrows.
Covers all geometry topics
Lines/angles, triangles, quadrilaterals, circles, similarity, congruence, area, volume, coordinate geometry, transformations, trigonometry intro.
Coordinate geometry with full work
Distance, midpoint, slope, line equations, intersections — every step shown with the formula.
Transformations and symmetry
Translations, reflections, rotations, dilations — both algebraically (coordinate rules) and visually described.
What It Covers
- •High School Geometry. Standard curriculum: parallel lines, congruent triangles, similar triangles, circles, area, volume.
- •Geometry Proofs. Two-column proofs with given/prove structure and explicit reasons for every step.
- •Coordinate Geometry. Working in the (x, y) plane: distance, slope, equations of lines and circles.
- •Trigonometry intro. SOH-CAH-TOA, special triangles, basic identities.
- •AP / IB Geometry. Curriculum-aligned solutions for AP-style problems and IB MYP/DP geometry.
Frequently Asked Questions
Can ScanSolve solve geometry proofs?+
Yes — ScanSolve writes two-column or paragraph proofs with given information, the prove statement, and a numbered list of statements with their reasons (definition, postulate, theorem, or given).
Does it work on geometry problems with diagrams?+
Yes. Photograph the page including the figure and ScanSolve reads both the diagram and the text together. It identifies marked angles, congruent sides, and parallel markings from the figure.
Is the geometry solver free?+
Yes. 5 free step-by-step solutions per day, no card required, no sign-up.
Can it handle coordinate geometry?+
Yes. Distance formula, midpoint formula, slope, equations of lines and circles, intersection points — full step-by-step with the formulas labeled.
Related Free Tools
More homework help from ScanSolve — same free tier, no sign-up.
Try ScanSolve Free
5 free step-by-step solutions per day across all subjects. No card required, no sign-up needed.