Triangle calculator VC

Please enter the coordinates of the three vertices


Acute isosceles triangle.

Sides: a = 2.44994897428   b = 3.74216573868   c = 3.74216573868

Area: T = 4.33301270189
Perimeter: p = 9.93328045163
Semiperimeter: s = 4.96664022582

Angle ∠ A = α = 38.21332107017° = 38°12'48″ = 0.66769463445 rad
Angle ∠ B = β = 70.89333946491° = 70°53'36″ = 1.23773231545 rad
Angle ∠ C = γ = 70.89333946491° = 70°53'36″ = 1.23773231545 rad

Height: ha = 3.53655339059
Height: hb = 2.31545502494
Height: hc = 2.31545502494

Median: ma = 3.53655339059
Median: mb = 2.55495097568
Median: mc = 2.55495097568

Inradius: r = 0.8721884071
Circumradius: R = 1.98798989873

Vertex coordinates: A[-2; 0; -1] B[-1; 2; 2] C[1; 1; 1]
Centroid: CG[-0.66766666667; 1; 0.66766666667]
Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 141.7876789298° = 141°47'12″ = 0.66769463445 rad
∠ B' = β' = 109.1076605351° = 109°6'24″ = 1.23773231545 rad
∠ C' = γ' = 109.1076605351° = 109°6'24″ = 1.23773231545 rad

Calculate another triangle




How did we calculate this triangle?

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


Fatal error: Uncaught Error: Class 'TexPNG' not found in /nfsmnt/hosting1_1/1/f/1f5dde43-2431-429d-b7d6-b283e5dc0656/triangle-calculator.com/web/Calculator_Triangle.php:2320 Stack trace: #0 /nfsmnt/hosting1_1/1/f/1f5dde43-2431-429d-b7d6-b283e5dc0656/triangle-calculator.com/web/Calculator_Triangle.php(1929): Calculator_Triangle->ComputeTriangle(2.44948974278, 3.74165738677, 3.74165738677, '<br />', NULL, '', Array, '<a href='/?what...', Array) #1 /nfsmnt/hosting1_1/1/f/1f5dde43-2431-429d-b7d6-b283e5dc0656/triangle-calculator.com/web/Calculators.php(1086): Calculator_Triangle->TriangleForm('Triangle calcul...') #2 /nfsmnt/hosting1_1/1/f/1f5dde43-2431-429d-b7d6-b283e5dc0656/triangle-calculator.com/web/Calculators.php(2225): Calculators->Router('triangle', 'Triangle calcul...', 'Geometry') #3 /nfsmnt/hosting1_1/1/f/1f5dde43-2431-429d-b7d6-b283e5dc0656/triangle-calculator.com/web/index_real.php(490): Calculators->Run() #4 /nfsmnt/hosting1_1/1/f/1f5dde43-2431-429d-b7d6-b283e5dc0656/triangle-calculator.com/web/index_real.php(771 in /nfsmnt/hosting1_1/1/f/1f5dde43-2431-429d-b7d6-b283e5dc0656/triangle-calculator.com/web/Calculator_Triangle.php on line 2320