# Triangle calculator SSS - result

Please enter the triangle sides:

### Obtuse scalene triangle.

Sides: a = 10   b = 22   c = 28

Area: T = 97.98795897113
Perimeter: p = 60
Semiperimeter: s = 30

Angle ∠ A = α = 18.54989996134° = 18°32'56″ = 0.32437411162 rad
Angle ∠ B = β = 44.41553085972° = 44°24'55″ = 0.77551933733 rad
Angle ∠ C = γ = 117.0365691789° = 117°2'8″ = 2.04326581641 rad

Height: ha = 19.59659179423
Height: hb = 8.90772354283
Height: hc = 6.99985421222

Median: ma = 24.67879253585
Median: mb = 17.91664728672
Median: mc = 9.79879589711

Inradius: r = 3.26659863237
Circumradius: R = 15.71875591829

Vertex coordinates: A[28; 0] B[0; 0] C[7.14328571429; 6.99985421222]
Centroid: CG[11.71442857143; 2.33328473741]
Coordinates of the circumscribed circle: U[14; -7.14443450831]
Coordinates of the inscribed circle: I[8; 3.26659863237]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 161.4511000387° = 161°27'4″ = 0.32437411162 rad
∠ B' = β' = 135.5854691403° = 135°35'5″ = 0.77551933733 rad
∠ C' = γ' = 62.96443082106° = 62°57'52″ = 2.04326581641 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.