Triangle calculator SAS

Please enter two sides of the triangle and the included angle
°


Obtuse scalene triangle.

Sides: a = 13.1   b = 4.5   c = 9.88443752137

Area: T = 17.73884978074
Perimeter: p = 27.48443752137
Semiperimeter: s = 13.74221876069

Angle ∠ A = α = 127.0988481784° = 127°5'55″ = 2.21882869814 rad
Angle ∠ B = β = 15.90215182158° = 15°54'5″ = 0.27875338489 rad
Angle ∠ C = γ = 37° = 0.64657718232 rad

Height: ha = 2.70881676042
Height: hb = 7.88437768033
Height: hc = 3.58991996052

Median: ma = 4.00991067188
Median: mb = 11.38438893478
Median: mc = 8.45660500033

Inradius: r = 1.29108059703
Circumradius: R = 8.21221373125

Vertex coordinates: A[9.88443752137; 0] B[0; 0] C[12.59987160534; 3.58991996052]
Centroid: CG[7.49443637557; 1.19663998684]
Coordinates of the circumscribed circle: U[4.94221876069; 6.55985044712]
Coordinates of the inscribed circle: I[9.24221876069; 1.29108059703]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 52.90215182158° = 52°54'5″ = 2.21882869814 rad
∠ B' = β' = 164.0988481784° = 164°5'55″ = 0.27875338489 rad
∠ C' = γ' = 143° = 0.64657718232 rad

Calculate another triangle




How did we calculate this triangle?

1. Calculation of the third side c of the triangle using a Law of Cosines


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(13.1, 4.5, 9.88437521371, '<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): HackMath->Run() in /nfsmnt/hosting1_1/1/f/1f5dde43-2431-429d-b7d6-b283e5dc0656/triangle-calculator.com/web/Calculator_Triangle.php on line 2320