Equilateral triangle calculator

Please enter one property of the equilateral triangle

Use symbols: a, h, T, p, r, R


You have entered side a, b and c (as equilateral triangle).

Equilateral triangle.

Sides: a = 2379   b = 2379   c = 2379

Area: T = 2450696.441115
Perimeter: p = 7137
Semiperimeter: s = 3568.5

Angle ∠ A = α = 60° = 1.04771975512 rad
Angle ∠ B = β = 60° = 1.04771975512 rad
Angle ∠ C = γ = 60° = 1.04771975512 rad

Height: ha = 2060.27444356
Height: hb = 2060.27444356
Height: hc = 2060.27444356

Median: ma = 2060.27444356
Median: mb = 2060.27444356
Median: mc = 2060.27444356

Inradius: r = 686.7588145201
Circumradius: R = 1373.51662904

Vertex coordinates: A[2379; 0] B[0; 0] C[1189.5; 2060.27444356]
Centroid: CG[1189.5; 686.7588145201]
Coordinates of the circumscribed circle: U[1189.5; 686.7588145201]
Coordinates of the inscribed circle: I[1189.5; 686.7588145201]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 120° = 1.04771975512 rad
∠ B' = β' = 120° = 1.04771975512 rad
∠ C' = γ' = 120° = 1.04771975512 rad

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How did we calculate this triangle?

1. Input data entered: side a b c (as equilateral triangle)


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