# Triangle calculator SSS - result

Please enter the triangle sides:

### Obtuse scalene triangle.

Sides: a = 7   b = 25   c = 27

Area: T = 86.41328896635
Perimeter: p = 59
Semiperimeter: s = 29.5

Angle ∠ A = α = 14.8355111582° = 14°50'6″ = 0.2598921542 rad
Angle ∠ B = β = 66.12437922694° = 66°7'26″ = 1.1544077889 rad
Angle ∠ C = γ = 99.04110961486° = 99°2'28″ = 1.72985932226 rad

Height: ha = 24.68993970467
Height: hb = 6.91330311731
Height: hc = 6.40109547899

Median: ma = 25.78327461687
Median: mb = 15.25661463024
Median: mc = 12.44398553046

Inradius: r = 2.92992504971
Circumradius: R = 13.6769835653

Vertex coordinates: A[27; 0] B[0; 0] C[2.83333333333; 6.40109547899]
Centroid: CG[9.94444444444; 2.13436515966]
Coordinates of the circumscribed circle: U[13.5; -2.14881170312]
Coordinates of the inscribed circle: I[4.5; 2.92992504971]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 165.1654888418° = 165°9'54″ = 0.2598921542 rad
∠ B' = β' = 113.8766207731° = 113°52'34″ = 1.1544077889 rad
∠ C' = γ' = 80.95989038514° = 80°57'32″ = 1.72985932226 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.