17 17 17 triangle

Equilateral triangle.

Sides: a = 17   b = 17   c = 17

Area: T = 125.1410670847
Perimeter: p = 51
Semiperimeter: s = 25.5

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

Height: ha = 14.72224318643
Height: hb = 14.72224318643
Height: hc = 14.72224318643

Median: ma = 14.72224318643
Median: mb = 14.72224318643
Median: mc = 14.72224318643

Inradius: r = 4.90774772881
Circumradius: R = 9.81549545762

Vertex coordinates: A[17; 0] B[0; 0] C[8.5; 14.72224318643]
Centroid: CG[8.5; 4.90774772881]
Coordinates of the circumscribed circle: U[8.5; 4.90774772881]
Coordinates of the inscribed circle: I[8.5; 4.90774772881]

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

Calculate another triangle




How did we calculate this triangle?

Now we know the lengths of all three sides of the triangle and the triangle is uniquely determined. Next we calculate another its characteristics - same procedure as calculation of the triangle from the known three sides SSS.


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