Triangle calculator VC

Please enter the coordinates of the three vertices


Acute scalene triangle.

Sides: a = 8.06222577483   b = 6.40331242374   c = 8.24662112512

Area: T = 24
Perimeter: p = 22.7121593237
Semiperimeter: s = 11.35657966185

Angle ∠ A = α = 65.37664352138° = 65°22'35″ = 1.14110340477 rad
Angle ∠ B = β = 46.21988752351° = 46°13'8″ = 0.80766715494 rad
Angle ∠ C = γ = 68.4054689551° = 68°24'17″ = 1.19438870565 rad

Height: ha = 5.95436672603
Height: hb = 7.49663405707
Height: hc = 5.82108550009

Median: ma = 6.18546584384
Median: mb = 7.5
Median: mc = 6

Inradius: r = 2.11334580696
Circumradius: R = 4.4344369005

Vertex coordinates: A[-2; 5] B[-4; -3] C[3; 1]
Centroid: CG[-1; 1]
Coordinates of the circumscribed circle: U[0; 0]
Coordinates of the inscribed circle: I[2.02553973167; 2.11334580696]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 114.6243564786° = 114°37'25″ = 1.14110340477 rad
∠ B' = β' = 133.7811124765° = 133°46'52″ = 0.80766715494 rad
∠ C' = γ' = 111.5955310449° = 111°35'43″ = 1.19438870565 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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