# 6 25 27 triangle

### Obtuse scalene triangle.

Sides: a = 6   b = 25   c = 27

Area: T = 73.0487929471
Perimeter: p = 58
Semiperimeter: s = 29

Angle ∠ A = α = 12.54999234492° = 12°30' = 0.21881648204 rad
Angle ∠ B = β = 64.39991730166° = 64°23'57″ = 1.12439776047 rad
Angle ∠ C = γ = 103.1010903534° = 103°6'3″ = 1.79994502285 rad

Height: ha = 24.34993098237
Height: hb = 5.84438343577
Height: hc = 5.41109577386

Median: ma = 25.84656959666
Median: mb = 15.04216089565
Median: mc = 12.17657956619

Inradius: r = 2.51988941197
Circumradius: R = 13.86107624793

Vertex coordinates: A[27; 0] B[0; 0] C[2.59325925926; 5.41109577386]
Centroid: CG[9.86441975309; 1.80436525795]
Coordinates of the circumscribed circle: U[13.5; -3.14217728286]
Coordinates of the inscribed circle: I[4; 2.51988941197]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 167.5500076551° = 167°30' = 0.21881648204 rad
∠ B' = β' = 115.6010826983° = 115°36'3″ = 1.12439776047 rad
∠ C' = γ' = 76.89990964657° = 76°53'57″ = 1.79994502285 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 ### 6. Inradius ### 7. Circumradius ### 8. Calculation of medians #### Look also our friend's collection of math examples and problems:

See more informations about triangles or more information about solving triangles.