8.94 7.5 14.99 triangle

Obtuse scalene triangle.

Sides: a = 8.94   b = 7.5   c = 14.99

Area: T = 25.18216758747
Perimeter: p = 31.43
Semiperimeter: s = 15.715

Angle ∠ A = α = 26.61437006416° = 26°36'49″ = 0.46444967023 rad
Angle ∠ B = β = 22.07547667147° = 22°4'29″ = 0.38552773608 rad
Angle ∠ C = γ = 131.3121532644° = 131°18'42″ = 2.29218185905 rad

Height: ha = 5.63334845357
Height: hb = 6.71551135666
Height: hc = 3.36597966477

Median: ma = 10.97769827366
Median: mb = 11.75879483755
Median: mc = 3.45113439411

Inradius: r = 1.60223974467
Circumradius: R = 9.97882824721

Vertex coordinates: A[14.99; 0] B[0; 0] C[8.2854646431; 3.36597966477]
Centroid: CG[7.7588215477; 1.12199322159]
Coordinates of the circumscribed circle: U[7.495; -6.58771918216]
Coordinates of the inscribed circle: I[8.215; 1.60223974467]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 153.3866299358° = 153°23'11″ = 0.46444967023 rad
∠ B' = β' = 157.9255233285° = 157°55'31″ = 0.38552773608 rad
∠ C' = γ' = 48.68884673562° = 48°41'18″ = 2.29218185905 rad

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     