Why Your Geometry Textbook Lies (And How GitHub Can Fix It)
If you’ve ever tried to learn geometry from a static PDF or a dusty textbook, you know the struggle. You stare at a triangle on page 142, squint at the dotted lines, and wonder: "Does angle C really look like that? Or did the printer run out of ink?" geometry-lesson.github
Drag the vertex. Prove them wrong. (Spoiler: On a sphere, it’s more than 180°. We’ll cover that next week.) 👉 [Visit the Live Demo] 👉 [Star us on GitHub] Why Your Geometry Textbook Lies (And How GitHub
You can’t grab a triangle and stretch its vertices to see if the angles still add up to 180°. You can’t rotate a 3D solid to see why the volume formula works. You’re expected to memorize, not manipulate. Prove them wrong
Welcome to —where we stop guessing and start building. The Static Problem Traditional geometry lessons have a fatal flaw: they don’t move.