P07 · 2D Plane Geometry & ConstructionsSTUDIO
N = 5 · l = 5 cm · a = 3.44 cmSVG · PPTX · 1:1
P07 // 2D Plane Geometry & Constructions
Regular Polygons with Apothem, Incircle & Circumcircle
From pentagons and hexagons to N-gons: toggleable central triangle decomposition, apothem, inradius, circumradius, and crisp ISO vector dimensioning.
Key formulas & geometric relations
2p = n · l · a = l / [2 · tan(180°/n)] · A = (2p · a) / 2
Pre-configured models ready to open or download (19)
Catalog →- Regular Pentagon with Apothem (Side 5 cm)N = 5 · l = 5 cm · a = 3.44 cm
- Inscribed Regular Hexagon with Triangles (s = 5 cm)N = 6 · l = 5 cm · R = 5 cm
- Regular Octagon with Inscribed CircleN = 8 · l = 4 cm · a = 4.83 cm
- Regular Pentagon with Apothem, No QuotesN=5 · apotema senza quote
- Regular Pentagon Split into 5 Triangles with Concentric CirclesN=5 · 5 triangoli + inscritta/circoscritta
- Blank Regular Pentagon for Primary Schoolpentagono regolare muto
- Regular Hexagon Split into 6 Equilateral Triangles (No Quotes)N=6 · 6 triangoli equilateri senza quote
- Blank Unlabeled Regular Hexagonesagono regolare muto
- Regular Hexagon with Inscribed & Circumscribed CirclesN=6 · circonferenza inscritta e circoscritta
- Regular Octagon with Apothem & Radii, No QuotesN=8 · triangoli e apotema senza quote
- Blank Regular Octagon for Recognitionottagono regolare muto
- Equilateral Triangle with Incircle & CircumcircleN=3 · r = R/2 · incentro e circocentro
- Equilateral Triangle Incircle/Circumcircle Problem (No Quotes)N=3 inscritto/circoscritto · senza quote
- Square with Inscribed & Circumscribed Circles (s = 6 cm)N=4 · cerchio inscritto e circoscritto
- Regular Heptagon (7 Sides) with ApothemN=7 · l = 4 cm · apotema
- Regular Nonagon (9 Sides) Inscribed in CircleN=9 · l = 3.5 cm · circoscritta
- Regular Decagon (10 Sides) with Circumcircle & RadiiN=10 · sezione aurea R/l = φ
- Regular Dodecagon (12 Sides) Archimedes Pi ApproximationN=12 · metodo di Archimede per π
- Blank 12-Sector Inscribed Dodecagon DivisionN=12 · divisione cerchio in 12 parti