Geometry Solver

Every geometry problem. Solved with the right tool.

Type or photograph the geometry problem. AskSia handles angles, triangles, polygons, circles, perimeter, area, volume, surface area, coordinate geometry, congruence, similarity, and basic proofs. Each problem gets the right theorem identified before the work begins.

Works with word problems, equations, code, and science prompts.
∫ 3x² · sin(x) dx
SubjectsCalculusAlgebraPhysicsChemistryBiologyCSStatisticsEcon
4.9 / 5 · trusted by 2M+ students · 50M+ problems solved
Quick Answer

What does the geometry solver cover?

The AskSia geometry solver covers high school and college geometry: properties of triangles, quadrilaterals, polygons, circles, and 3D solids; perimeter, area, surface area, and volume formulas; angle relationships (vertical, supplementary, complementary, transversal); congruence (SSS, SAS, ASA, AAS) and similarity (AA, SSS, SAS); the Pythagorean theorem, law of sines, law of cosines, and trig ratios; coordinate geometry, distance, midpoint, and slope; and short proofs.

98%
solution accuracy
50M+
problems solved
~1.5s
avg solve time
A+
study-ready explanations
Why AskSia Solver

Why students use AskSia for Geometry.

Every step transparent, every answer self-checked.

All topics covered.

Triangles, quadrilaterals, polygons, circles, 3D solids. AskSia identifies the topic and uses the right tool.

Full coverage

Theorem identification.

Before solving, AskSia names the theorem or formula that applies.

Method-aware

Step-by-step proofs.

Two-column or paragraph format, with each statement and reason listed.

Proofs

Coordinate geometry too.

Distance, midpoint, slope, line equations, conic sections all integrated.

Coordinate

Photo, paste, or type.

Snap handwritten or printed problems with your phone, paste from any online homework portal, or type with full LaTeX support.

Multi-modal input

Verified by AskSia.

Every answer gets a self-check pass. Sia catches sign errors and algebra mistakes before you submit your homework.

Self-checked
How It Works

Solve any Geometry problem in three steps.

Step 01

Enter the problem.

Type the expression, paste from your homework, snap a photo, or speak it. AskSia parses your input and identifies the structure.

Input mode
Snap a Photo
Textbook, handwriting, screenshot
Paste Text
Word problem or equation
Calculator
LaTeX-ready equation editor
Step 02

AskSia picks the method.

Based on the problem structure, AskSia chooses the cleanest solution path and labels each step with the operation performed.

Calculus · Step 4 of 4
1.4s
1
Set curves equal
x² = 2x → x = 0, x = 2
2
Set up the integral
A = ∫₀² (2x - x²) dx
3
Evaluate
A = [x² - x³/3]₀² = 4/3
Step 03

Read the verified answer.

Final result appears with a substitution or composition check. Practice problems on the same concept are one tap away.

Auto-generated diagram
Region between y = 2x and y = x² — area = 4/3
Available On

Solve anywhere
you study.

Every solve syncs across Web, iOS, and Android — start it at your desk, finish on your phone.

Web App

Full study studio

Split-panel interface with the worked solution on the left, the auto-generated diagram and AI tutor chat on the right.

Drag & drop image upload + LaTeX equation editor
Auto-generated diagrams render alongside steps
Side-panel AI tutor chat for hints and alt methods
Export to PDF, DOCX, Notion, or Google Docs
app.asksia.ai/solver
Hi! What are we studying today?
Ask about your homework, lecture, or readings...
Calculus
98% verified
1.4s
Step 4 of 4 · Evaluate
A = [x² - x³/3]₀² = 4/3
Mobile App

Snap & solve, anywhere

Open the camera, frame the problem, and the worked solution plus diagram appear in seconds.

One-tap snap-and-solve on iOS and Android
Pinch-to-zoom diagrams, swipe between steps
Auto-sync solves with your Web library
Offline review of saved solutions and flashcards
AskSia
+
What can I do for you?
Homework solver
Live transcribe
File summary
Snap
YouTube
Flashcard
Calc
98%
1.4s
Area between y=2x & y=x²
A = 4/3 sq. units ✓
Use Cases

What the Geometry solver covers.

📐

Triangle problems.

Side and angle finding, area, perimeter, congruence, similarity.

Triangles
⚛️

Polygon properties.

Interior and exterior angles, area of regular polygons.

Polygons
🧪

Circle problems.

Area, circumference, arc length, sector area, inscribed and central angles.

Circles
🧬

3D solids.

Surface area and volume of prisms, cylinders, cones, spheres, pyramids.

3D
💻

Coordinate geometry.

Distance, midpoint, slope, line equations, circle equations.

Coordinate
🎯

Verify your homework.

Paste your candidate answer and the original problem. AskSia walks the work, flags any divergent step, and tells you the correct final value.

Answer check
Compare

AskSia vs. ChatGPT,
Photomath & Symbolab.

General chatbots hallucinate. Photo solvers stop at math. AskSia is built for actual coursework with verified accuracy, visual learning, and every subject.

Feature comparison between AskSia Solver and alternatives
FeatureAskSia SolverChatGPTPhoto Solvers
Solution accuracy✓ 98%~70-85%, hallucinations~90%, math only
Auto-generated diagrams✓ Every solveInconsistent / brokenGraphs only, math-only
Step-by-step explanations✓ Numbered + plain EnglishInconsistent depth✓ Math steps
Subject coverage✓ Math, Physics, Chem, Bio, CS, Econ✓ Wide but unverifiedMath only
Photo input✓ Handwriting + diagrams + codePhotos OK, weak on handwriting✓ Math photos only
Answer verification✓ Self-checked before displayNo verificationMath engine only
Tutor follow-ups✓ Hints, alt methods, ELI5✓ General chatNot available
Practice and flashcards✓ One-tap from any solveManual promptingNot available
Code debugging✓ Python, Java, C++, SQL...✓ YesNot available
Free to start✓ Daily solves, no cardLimited model accessSteps locked behind paywall
FAQ

Frequently asked questions.

Which geometry theorems does AskSia know?
The standard set: angle sum (triangle 180, quadrilateral 360, polygon (n-2)*180), congruence and similarity criteria, Pythagorean theorem, law of sines, law of cosines, triangle inequality, parallel line theorems (alternate, corresponding, co-interior angles), circle theorems (inscribed angle, tangent-chord, power of a point), and the area/volume/surface area formulas for standard shapes.
Can AskSia write a two-column proof?
Yes. For proof problems, AskSia produces a two-column format with statements on the left and reasons on the right, where each reason is the theorem or definition that justifies the statement. Alternatively, AskSia can produce a paragraph proof on request. The proof's logical structure matches what a geometry teacher expects.
How does AskSia handle coordinate geometry?
By converting between geometric and algebraic representations. Distance, midpoint, and slope have explicit formulas. Lines, circles, parabolas, ellipses, and hyperbolas have standard equations. AskSia computes intersections, tangents, and other coordinate-based properties using algebra, and translates results back to geometric language when appropriate.
What about constructions and transformations?
AskSia describes ruler-and-compass constructions step by step (e.g., constructing a perpendicular bisector). Geometric transformations (translation, rotation, reflection, dilation) are handled using coordinate algebra: each transformation has a matrix or coordinate rule, and AskSia applies it to the given figure.
How accurate is AskSia?
AskSia hits 98% accuracy on standard high school and college coursework, measurably higher than ChatGPT, Photomath, and Symbolab on the same problem sets. Accuracy comes from subject-specialized models, a symbolic verification pass that catches arithmetic errors, and a self-check step that re-derives the answer before showing it to you.
Can I get practice problems and flashcards?
Yes. After any solve, ask Sia to generate similar practice problems at SAT, ACT, AP, IB, or college difficulty, or build a flashcard set on the underlying concept in one tap. Useful for exam prep and spaced repetition before a quiz, midterm, or final.
How much does AskSia cost?
AskSia has a free plan that includes daily solves across all subjects. AskSia Pro and Super include unlimited solves, advanced subjects, the full AI tutor companion, exports, and priority response speed. See pricing for details.
Start Today

Triangles to 3D, every tool.

Join 2M+ students using AskSia to solve geometry problems step-by-step. Photo input, plain-English explanations, and a verification check on every solve.

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