Triangle calculator

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

You have entered side a, c and height hc.

Triangle has two solutions: a=405; b=1382.678781137; c=982 and a=405; b=587.2821933953; c=982.

#1 Obtuse scalene triangle.

Sides: a = 405   b = 1382.678781137   c = 982

Area: T = 34370
Perimeter: p = 2769.678781137
Semiperimeter: s = 1384.839890568

Angle ∠ A = α = 2.90219195744° = 2°54'7″ = 0.05106480512 rad
Angle ∠ B = β = 170.0477044832° = 170°2'49″ = 2.96878808156 rad
Angle ∠ C = γ = 7.05110355939° = 7°3'4″ = 0.12330637868 rad

Height: ha = 169.7288395062
Height: hb = 49.71551248359
Height: hc = 70

Median: ma = 1181.971069127
Median: mb = 293.6410966977
Median: mc = 892.6543608644

Inradius: r = 24.81987712368
Circumradius: R = 3999.889938289

Vertex coordinates: A[982; 0] B[0; 0] C[-398.9054750536; 70]
Centroid: CG[194.3655083155; 23.33333333333]
Coordinates of the circumscribed circle: U[491; 3969.63990359]
Coordinates of the inscribed circle: I[2.16110943155; 24.81987712368]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 177.0988080426° = 177°5'53″ = 0.05106480512 rad
∠ B' = β' = 9.95329551683° = 9°57'11″ = 2.96878808156 rad
∠ C' = γ' = 172.9498964406° = 172°56'56″ = 0.12330637868 rad




How did we calculate this triangle?

1. Input data entered: side a, c and height hc.


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