# Triangle calculator SSS - result

Please enter the triangle sides:

### Obtuse scalene triangle.

Sides: a = 10   b = 25   c = 30

Area: T = 117.094371247
Perimeter: p = 65
Semiperimeter: s = 32.5

Angle ∠ A = α = 18.19548723388° = 18°11'42″ = 0.31875604293 rad
Angle ∠ B = β = 51.31878125465° = 51°19'4″ = 0.89656647939 rad
Angle ∠ C = γ = 110.4877315115° = 110°29'14″ = 1.92883674304 rad

Height: ha = 23.4198742494
Height: hb = 9.36774969976
Height: hc = 7.8066247498

Median: ma = 27.1576951228
Median: mb = 18.54404962177
Median: mc = 11.72660393996

Inradius: r = 3.60328834606
Circumradius: R = 16.01328153805

Vertex coordinates: A[30; 0] B[0; 0] C[6.25; 7.8066247498]
Centroid: CG[12.08333333333; 2.60220824993]
Coordinates of the circumscribed circle: U[15; -5.60444853832]
Coordinates of the inscribed circle: I[7.5; 3.60328834606]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 161.8055127661° = 161°48'18″ = 0.31875604293 rad
∠ B' = β' = 128.6822187453° = 128°40'56″ = 0.89656647939 rad
∠ C' = γ' = 69.51326848853° = 69°30'46″ = 1.92883674304 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.