Triangle calculator VC

Please enter the coordinates of the three vertices


Acute scalene triangle.

Sides: a = 7.21111025509   b = 12.64991106407   c = 12.80662484749

Area: T = 44
Perimeter: p = 32.66664616665
Semiperimeter: s = 16.33332308332

Angle ∠ A = α = 32.9055242923° = 32°54'19″ = 0.57443048302 rad
Angle ∠ B = β = 72.35498757801° = 72°21' = 1.26327435458 rad
Angle ∠ C = γ = 74.74548812969° = 74°44'42″ = 1.30545442776 rad

Height: ha = 12.2033404317
Height: hb = 6.95770108524
Height: hc = 6.87216455231

Median: ma = 12.20765556157
Median: mb = 8.24662112512
Median: mc = 8.06222577483

Inradius: r = 2.69438944566
Circumradius: R = 6.63769862722

Vertex coordinates: A[2; 0] B[-6; 10] C[-10; 4]
Centroid: CG[-4.66766666667; 4.66766666667]
Coordinates of the circumscribed circle: U[0; 0]
Coordinates of the inscribed circle: I[0.85771482362; 2.69438944566]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 147.0954757077° = 147°5'41″ = 0.57443048302 rad
∠ B' = β' = 107.655012422° = 107°39' = 1.26327435458 rad
∠ C' = γ' = 105.2555118703° = 105°15'18″ = 1.30545442776 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(7.21110255093, 12.6491106407, 12.8062484749, '<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