Triangle calculator VC

Please enter the coordinates of the three vertices


Obtuse scalene triangle.

Sides: a = 9.22195444573   b = 11.4021754251   c = 6.40331242374

Area: T = 29.5
Perimeter: p = 27.02444229457
Semiperimeter: s = 13.51222114729

Angle ∠ A = α = 53.91549269571° = 53°54'54″ = 0.94109929914 rad
Angle ∠ B = β = 91.94114863909° = 91°56'29″ = 1.60546816567 rad
Angle ∠ C = γ = 34.14435866519° = 34°8'37″ = 0.59659180055 rad

Height: ha = 6.39994485057
Height: hb = 5.17546423139
Height: hc = 9.21442519514

Median: ma = 8.01656097709
Median: mb = 5.52326805086
Median: mc = 9.86215414617

Inradius: r = 2.18332103545
Circumradius: R = 5.704415161

Vertex coordinates: A[-3; 2] B[2; 6] C[8; -1]
Centroid: CG[2.33333333333; 2.33333333333]
Coordinates of the circumscribed circle: U[0; 0]
Coordinates of the inscribed circle: I[-0.07440071307; 2.18332103545]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 126.0855073043° = 126°5'6″ = 0.94109929914 rad
∠ B' = β' = 88.05985136091° = 88°3'31″ = 1.60546816567 rad
∠ C' = γ' = 145.8566413348° = 145°51'23″ = 0.59659180055 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(9.21954445729, 11.401754251, 6.40312423743, '<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