Triangle calculator

Please enter what you know about the triangle:
Symbols definition of ABC triangle

You have entered side a, b and c.

Equilateral triangle.

Sides: a = 58   b = 58   c = 58

Area: T = 1456.655472917
Perimeter: p = 174
Semiperimeter: s = 87

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

Height: ha = 50.22994734195
Height: hb = 50.22994734195
Height: hc = 50.22994734195

Median: ma = 50.22994734195
Median: mb = 50.22994734195
Median: mc = 50.22994734195

Inradius: r = 16.74331578065
Circumradius: R = 33.4866315613

Vertex coordinates: A[58; 0] B[0; 0] C[29; 50.22994734195]
Centroid: CG[29; 16.74331578065]
Coordinates of the circumscribed circle: U[29; 16.74331578065]
Coordinates of the inscribed circle: I[29; 16.74331578065]

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 and c.


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