New posts in geometry

equilateral triangle; $3(a^4 + b^4 + c^4 + d^4) = (a^2 + b^2 + c^2 + d^2)^2.$

geometry algebra-precalculus contest-math triangles symmetry

Prove that $3 \le a+b+c \le 2\sqrt{3}$ in a triangle

geometry inequality

Calculating an Angle from $2$ points in space

linear-algebra geometry

How to constrain movement within the area of a circle

javascript geometry

Analytically compute signed distance of ellipsoid

geometry 3d

Volume of an Irregular Octahedron from edge lengths?

geometry volume polyhedra quadrilateral

What is the equation of an ellipse that is not aligned with the axis?

geometry conic-sections

Extending the primes

geometry number-theory reference-request prime-numbers natural-numbers

Proof of the Pizza Theorem

geometry

Why are there two versions of a polar equation for a circle from geometric form

algebra-precalculus geometry trigonometry analytic-geometry polar-coordinates

Condition of existence of a triangle

geometry inequality euclidean-geometry analytic-geometry triangles

Prove that a triangle with a given base and angle must be isosceles to have maximum perimeter

geometry trigonometry inequality

Convex sided polygon with exterior angles in AP [duplicate]

geometry diophantine-equations polygons arithmetic-progressions

Convex n-sided polygons whose exterior angles expressed in degrees are in arithmetic progression

geometry diophantine-equations polygons arithmetic-progressions

A geometric inequality, proving $8r+2R\le AM_1+BM_2+CM_3\le 6R$

geometry inequality triangles geometric-inequalities

simple geometry question- equation of cylinder

geometry

Area of a circle inscribed in a polygon

geometry circles polygons

Algorithm to generate an uniform distribution of points in the volume of an hypersphere/on the surface of an hypersphere.

geometry algorithms random spherical-geometry dimension-theory-analysis

Geometric interpretation of a quintic's roots as a pentagon?

geometry trigonometry roots real-numbers

Axiomatization of angle measuring in real vector spaces

linear-algebra geometry vector-spaces