# Triangle calculator SSS - result

Please enter the triangle sides:

### Obtuse scalene triangle.

Sides: a = 18.76   b = 16.15   c = 3.35

Area: T = 18.24439964273
Perimeter: p = 38.26
Semiperimeter: s = 19.13

Angle ∠ A = α = 137.5910608875° = 137°35'26″ = 2.40114091447 rad
Angle ∠ B = β = 35.49223125015° = 35°29'32″ = 0.61994577123 rad
Angle ∠ C = γ = 6.91770786235° = 6°55'1″ = 0.12107257966 rad

Height: ha = 1.94549889581
Height: hb = 2.2599318443
Height: hc = 10.89219381656

Median: ma = 6.93109523155
Median: mb = 10.78876978545
Median: mc = 17.42333872998

Inradius: r = 0.95436851243
Circumradius: R = 13.90881766438

Vertex coordinates: A[3.35; 0] B[0; 0] C[15.27442686567; 10.89219381656]
Centroid: CG[6.20880895522; 3.63106460552]
Coordinates of the circumscribed circle: U[1.675; 13.80769458084]
Coordinates of the inscribed circle: I[2.98; 0.95436851243]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 42.4099391125° = 42°24'34″ = 2.40114091447 rad
∠ B' = β' = 144.5087687499° = 144°30'28″ = 0.61994577123 rad
∠ C' = γ' = 173.0832921377° = 173°4'59″ = 0.12107257966 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.