16 26 27 triangle
Acute scalene triangle.
Sides: a = 16 b = 26 c = 27Area: T = 201.714375139
Perimeter: p = 69
Semiperimeter: s = 34.5
Angle ∠ A = α = 35.07774391825° = 35°4'39″ = 0.61222168069 rad
Angle ∠ B = β = 69.04547372744° = 69°2'41″ = 1.20550579966 rad
Angle ∠ C = γ = 75.87878235431° = 75°52'40″ = 1.32443178501 rad
Height: ha = 25.21442189238
Height: hb = 15.51664424146
Height: hc = 14.94217593623
Median: ma = 25.2698557537
Median: mb = 17.98661057486
Median: mc = 16.84548805279
Inradius: r = 5.84767754026
Circumradius: R = 13.92107167615
Vertex coordinates: A[27; 0] B[0; 0] C[5.72222222222; 14.94217593623]
Centroid: CG[10.90774074074; 4.98105864541]
Coordinates of the circumscribed circle: U[13.5; 3.39765210368]
Coordinates of the inscribed circle: I[8.5; 5.84767754026]
Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 144.9232560818° = 144°55'21″ = 0.61222168069 rad
∠ B' = β' = 110.9555262726° = 110°57'19″ = 1.20550579966 rad
∠ C' = γ' = 104.1222176457° = 104°7'20″ = 1.32443178501 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.
1. The triangle circumference is the sum of the lengths of its three sides

2. Semiperimeter of the triangle

3. The triangle area using Heron's formula

4. Calculate the heights of the triangle from its area.

5. Calculation of the inner angles of the triangle using a Law of Cosines

6. Inradius

7. Circumradius
