2.5 2.5 2.5 triangle

Equilateral triangle.

Sides: a = 2.5   b = 2.5   c = 2.5

Area: T = 2.70663293868
Perimeter: p = 7.5
Semiperimeter: s = 3.75

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

Height: ha = 2.16550635095
Height: hb = 2.16550635095
Height: hc = 2.16550635095

Median: ma = 2.16550635095
Median: mb = 2.16550635095
Median: mc = 2.16550635095

Inradius: r = 0.72216878365
Circumradius: R = 1.4433375673

Vertex coordinates: A[2.5; 0] B[0; 0] C[1.25; 2.16550635095]
Centroid: CG[1.25; 0.72216878365]
Coordinates of the circumscribed circle: U[1.25; 0.72216878365]
Coordinates of the inscribed circle: I[1.25; 0.72216878365]

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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