Triangle calculator VC

Please enter the coordinates of the three vertices


Right isosceles triangle.

Sides: a = 8.06222577483   b = 11.4021754251   c = 8.06222577483

Area: T = 32.5
Perimeter: p = 27.52662697476
Semiperimeter: s = 13.76331348738

Angle ∠ A = α = 45° = 0.78553981634 rad
Angle ∠ B = β = 90° = 1.57107963268 rad
Angle ∠ C = γ = 45° = 0.78553981634 rad

Height: ha = 8.06222577483
Height: hb = 5.70108771255
Height: hc = 8.06222577483

Median: ma = 9.01438781887
Median: mb = 5.70108771255
Median: mc = 9.01438781887

Inradius: r = 2.36113806228
Circumradius: R = 5.70108771255

Vertex coordinates: A[-4; 11] B[3; 7] C[-1; 0]
Centroid: CG[-0.66766666667; 6]
Coordinates of the circumscribed circle: U[0; 0]
Coordinates of the inscribed circle: I[-0; 2.36113806228]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 135° = 0.78553981634 rad
∠ B' = β' = 90° = 1.57107963268 rad
∠ C' = γ' = 135° = 0.78553981634 rad

Calculate another triangle




How did we calculate this triangle?

1. We compute side a from coordinates using the Pythagorean theorem


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