2.94 1.29 2.16 triangle

Obtuse scalene triangle.

Sides: a = 2.94   b = 1.29   c = 2.16

Area: T = 1.26774276762
Perimeter: p = 6.39
Semiperimeter: s = 3.195

Angle ∠ A = α = 114.5332742052° = 114°31'58″ = 1.99989734501 rad
Angle ∠ B = β = 23.52659686628° = 23°31'33″ = 0.41106056129 rad
Angle ∠ C = γ = 41.94112892856° = 41°56'29″ = 0.73220135906 rad

Height: ha = 0.86221956981
Height: hb = 1.96550041491
Height: hc = 1.17435441446

Median: ma = 1.00219730535
Median: mb = 2.49877139548
Median: mc = 1.99768600352

Vertex coordinates: A[2.16; 0] B[0; 0] C[2.6965625; 1.17435441446]
Centroid: CG[1.61985416667; 0.39111813815]
Coordinates of the circumscribed circle: U[1.08; 1.20219360383]
Coordinates of the inscribed circle: I[1.905; 0.39766909785]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 65.46772579484° = 65°28'2″ = 1.99989734501 rad
∠ B' = β' = 156.4744031337° = 156°28'27″ = 0.41106056129 rad
∠ C' = γ' = 138.0598710714° = 138°3'31″ = 0.73220135906 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    