# 14.73 6378.1 6378.12 triangle

### Obtuse scalene triangle.

Sides: a = 14.73   b = 6378.1   c = 6378.12

Area: T = 46974.70655317
Perimeter: p = 12770.95
Semiperimeter: s = 6385.475

Angle ∠ A = α = 0.13223223089° = 0°7'56″ = 0.002230946 rad
Angle ∠ B = β = 89.85660441966° = 89°51'22″ = 1.5688283824 rad
Angle ∠ C = γ = 90.01216334944° = 90°42″ = 1.57109993696 rad

Height: ha = 6378.109986853
Height: hb = 14.73299996964
Height: hc = 14.73299535072

Median: ma = 6378.106574771
Median: mb = 3189.087700903
Median: mc = 3189.057700919

Vertex coordinates: A[6378.12; 0] B[0; 0] C[0.03770091265; 14.73299535072]
Centroid: CG[2126.052233638; 4.91099845024]
Coordinates of the circumscribed circle: U[3189.06; -0.64875156214]
Coordinates of the inscribed circle: I[7.375; 7.35664935313]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 179.8687677691° = 179°52'4″ = 0.002230946 rad
∠ B' = β' = 90.14439558034° = 90°8'38″ = 1.5688283824 rad
∠ C' = γ' = 89.98883665056° = 89°59'18″ = 1.57109993696 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    