Geometry Calculator Plus vs Pythagoras Interactive

Geometry Calculator — the ultimate shape solver for students, engineers, architects, and anyone who works with measurements. Instantly calculate area, perimeter, volume, surface area, angles, diagonals, and dozens of other properties for 15 shapes — all in one beautifully designed app. Just enter what you know, and every result updates in real time. 15 Shapes. Every Property. • 2D Shapes - Circle, Rectangle, Square, Triangle, Parallelogram, Trapezoid, Regular Polygon, Ellipse — with full outputs including circumradius, inradius, diagonals, apothem, eccentricity, and more. • 3D Shapes - Cube, Cuboid, Sphere, Cylinder, Cone, Square Pyramid, Triangular Prism — with volume, surface area, lateral area, slant height, face areas, and space diagonals. Advanced Triangle Solver Solve any triangle from any combination of known values: • SSS - three sides • SAS - two sides and included angle • ASA - two angles and included side • AAS - two angles and non-included side • SSA - automatically detects and presents both solutions in the ambiguous case Outputs include all sides, all angles, area, perimeter, circumradius, and inradius. Live Shape Visualization Every shape is drawn in real time as you type. Pan and pinch to zoom on 2D shapes. Rotate and inspect 3D shapes freely with full camera control. Labels update dynamically to reflect your exact values. Step-by-Step Solutions Toggle step-by-step mode to see the exact formulas and intermediate calculations behind every result — perfect for learning, checking your work, or teaching. Full Unit Support Switch between mm, cm, m, inch, and ft from the toolbar. Area and volume units update automatically. Every result is always in the unit you choose. More Features • Tap any result to copy it to your clipboard instantly • Formula reference sheet covering every shape and unit conversion • Dark Mode fully supported • VoiceOver and Dynamic Type accessibility • No ads. No subscriptions. No account required. Perfect for students, teachers, engineers, architects, carpenters, designers, and anyone who needs fast, accurate geometry calculations. Thanks for your support, and do visit nitrio.com for more apps for your iOS devices.

Eureka! An interactive illustration of the Pythagorean Theorem. Drag the legs of the right triangle and watch the three squares transform in real time. Every side shows its length, every square its area — in radical form when needed, so you'll see 2√2 rather than 2.828. Slide through a visual demonstration of Euclid's original proof from Book I of the Elements. Understand why the theorem is always true, not just what it claims.