# Triangle calculator SSS - result

Please enter the triangle sides:

### Acute scalene triangle.

Sides: a = 15   b = 24   c = 28

Area: T = 179.9549819394
Perimeter: p = 67
Semiperimeter: s = 33.5

Angle ∠ A = α = 32.38222322764° = 32°22'56″ = 0.56551765724 rad
Angle ∠ B = β = 58.97107104672° = 58°58'15″ = 1.02992330599 rad
Angle ∠ C = γ = 88.64770572564° = 88°38'49″ = 1.54771830213 rad

Height: ha = 23.99333092526
Height: hb = 14.99658182828
Height: hc = 12.85435585282

Median: ma = 24.97549874875
Median: mb = 18.9876837546
Median: mc = 14.33003496461

Inradius: r = 5.37216363998
Circumradius: R = 14.00439040244

Vertex coordinates: A[28; 0] B[0; 0] C[7.73221428571; 12.85435585282]
Centroid: CG[11.91107142857; 4.28545195094]
Coordinates of the circumscribed circle: U[14; 0.33106477339]
Coordinates of the inscribed circle: I[9.5; 5.37216363998]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 147.6187767724° = 147°37'4″ = 0.56551765724 rad
∠ B' = β' = 121.0299289533° = 121°1'45″ = 1.02992330599 rad
∠ C' = γ' = 91.35329427436° = 91°21'11″ = 1.54771830213 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.