13 15 25 triangle

Obtuse scalene triangle.

Sides: a = 13   b = 15   c = 25

Area: T = 78.55769061254
Perimeter: p = 53
Semiperimeter: s = 26.5

Angle ∠ A = α = 24.77695868266° = 24°46'11″ = 0.43223108445 rad
Angle ∠ B = β = 28.90994725423° = 28°54'34″ = 0.50545654809 rad
Angle ∠ C = γ = 126.3210940631° = 126°19'15″ = 2.20547163282 rad

Height: ha = 12.08656778655
Height: hb = 10.47442541501
Height: hc = 6.285455249

Median: ma = 19.56439975465
Median: mb = 18.4599414942
Median: mc = 6.38435726674

Inradius: r = 2.96444115519
Circumradius: R = 15.51442311493

Vertex coordinates: A[25; 0] B[0; 0] C[11.38; 6.285455249]
Centroid: CG[12.12766666667; 2.095485083]
Coordinates of the circumscribed circle: U[12.5; -9.18991984499]
Coordinates of the inscribed circle: I[11.5; 2.96444115519]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 155.2330413173° = 155°13'49″ = 0.43223108445 rad
∠ B' = β' = 151.0910527458° = 151°5'26″ = 0.50545654809 rad
∠ C' = γ' = 53.67990593689° = 53°40'45″ = 2.20547163282 rad

Calculate another triangle




How did we calculate this triangle?

Now we know the lengths of all three sides of the triangle and the triangle is uniquely determined. Next we calculate another its characteristics - same procedure as calculation of the triangle from the known three sides SSS.


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:2346 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, 15, 25, '<br />', true, '', 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() #5 /nfsmnt/hos in /nfsmnt/hosting1_1/1/f/1f5dde43-2431-429d-b7d6-b283e5dc0656/triangle-calculator.com/web/Calculator_Triangle.php on line 2346