# Triangle calculator SSS - result

Please enter the triangle sides:

### Acute scalene triangle.

Sides: a = 19   b = 27   c = 28

Area: T = 244.8266469157
Perimeter: p = 74
Semiperimeter: s = 37

Angle ∠ A = α = 40.36875935442° = 40°22'3″ = 0.70545474185 rad
Angle ∠ B = β = 66.9854667524° = 66°59'5″ = 1.16991029966 rad
Angle ∠ C = γ = 72.64877389318° = 72°38'52″ = 1.26879422385 rad

Height: ha = 25.77112072797
Height: hb = 18.13552940116
Height: hc = 17.48876049398

Median: ma = 25.81218189983
Median: mb = 19.75547462651
Median: mc = 18.68215416923

Inradius: r = 6.61769315988
Circumradius: R = 14.66875317108

Vertex coordinates: A[28; 0] B[0; 0] C[7.42985714286; 17.48876049398]
Centroid: CG[11.81095238095; 5.82992016466]
Coordinates of the circumscribed circle: U[14; 4.37545270015]
Coordinates of the inscribed circle: I[10; 6.61769315988]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 139.6322406456° = 139°37'57″ = 0.70545474185 rad
∠ B' = β' = 113.0155332476° = 113°55″ = 1.16991029966 rad
∠ C' = γ' = 107.3522261068° = 107°21'8″ = 1.26879422385 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 ### 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.