Spherical geometry Memes

Euclidean geometry crying in the corner while non-Euclidean geometry flexes with its mind-bending rules! In standard Euclidean geometry, an equilateral triangle (all sides equal) can't also be a right triangle (one 90° angle) because angles in a triangle must sum to 180°. But switch to a spherical surface and suddenly geometry goes wild! On a sphere, you can create a triangle with three 90° angles—adding up to 270°—completely breaking Euclidean rules. That spherical diagram is literally showing how triangles on curved surfaces can have properties that would make your high school geometry teacher have an existential crisis.