170 162 12.6 triangle

Obtuse scalene triangle.

Sides: a = 170   b = 162   c = 12.6

Area: T = 807.379933086
Perimeter: p = 344.6
Semiperimeter: s = 172.3

Angle ∠ A = α = 127.713316306° = 127°42'47″ = 2.22990151935 rad
Angle ∠ B = β = 48.92554734874° = 48°55'32″ = 0.85439106005 rad
Angle ∠ C = γ = 3.36113634522° = 3°21'41″ = 0.05986668596 rad

Height: ha = 9.49985803631
Height: hb = 9.968764606
Height: hc = 128.1555449343

Median: ma = 77.30770501313
Median: mb = 89.26657829182
Median: mc = 165.9298629236

Vertex coordinates: A[12.6; 0] B[0; 0] C[111.6976825397; 128.1555449343]
Centroid: CG[41.43222751323; 42.71884831143]
Coordinates of the circumscribed circle: U[6.3; 107.2632781805]
Coordinates of the inscribed circle: I[10.3; 4.68658928082]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 52.28768369396° = 52°17'13″ = 2.22990151935 rad
∠ B' = β' = 131.0754526513° = 131°4'28″ = 0.85439106005 rad
∠ C' = γ' = 176.6398636548° = 176°38'19″ = 0.05986668596 rad

How did we calculate this triangle? 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    