“🔷” meaning: large blue diamond Emoji

In plane Euclidean geometry, a rhombus (plural rhombi or rhombuses) is a quadrilateral whose four sides all have the same length. Another name is equilateral quadrilateral, since equilateral means that all of its sides are equal in length. The rhombus is often called a diamond, after the diamonds suit in playing cards which resembles the projection of an octahedral diamond, or a lozenge, though the former sometimes refers specifically to a rhombus with a 60° angle (which some authors call a calisson after the French sweet – also see Polyiamond), and the latter sometimes refers specifically to a rhombus with a 45° angle. Every rhombus is simple (non-self-intersecting), and is a special case of a parallelogram and a kite. A rhombus with right angles is a square. 🔗 Rhombus
🌐: معين (هندسة رياضية), Romb, Ромб, রম্বস, Romb, Kosočtverec, Rombe, Raute, Ρόμβος, Rombo, Romb, لوزی, Neljäkäs, Losange, מעוין, समचतुर्भुज, Romb, Rombusz, Belah ketupat, Rombo (geometria), 菱形, რომბი, Ромб, 마름모, Rombas, Rombs, Ruit (meetkunde), Rombe, Romb, Losango, Romb, Ромб, Kosoštvorec, Romb, Ромб, Romb, รูปสี่เหลี่ยมขนมเปียกปูน, Eşkenar dörtgen, Ромб, Hình thoi, 菱形.