# Triangle calculator SSS - result

Please enter the triangle sides:

### Obtuse scalene triangle.

Sides: a = 11   b = 23   c = 30

Area: T = 109.9821816679
Perimeter: p = 64
Semiperimeter: s = 32

Angle ∠ A = α = 18.59896365026° = 18°35'23″ = 0.32444503637 rad
Angle ∠ B = β = 41.80218441931° = 41°48'7″ = 0.73295798146 rad
Angle ∠ C = γ = 119.6098519304° = 119°36'31″ = 2.08875624753 rad

Height: ha = 19.99766939416
Height: hb = 9.5643636233
Height: hc = 7.33221211119

Median: ma = 26.15881727191
Median: mb = 19.44986503388
Median: mc = 10

Inradius: r = 3.43769317712
Circumradius: R = 17.25328519468

Vertex coordinates: A[30; 0] B[0; 0] C[8.2; 7.33221211119]
Centroid: CG[12.73333333333; 2.44440403706]
Coordinates of the circumscribed circle: U[15; -8.52441363373]
Coordinates of the inscribed circle: I[9; 3.43769317712]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 161.4110363497° = 161°24'37″ = 0.32444503637 rad
∠ B' = β' = 138.1988155807° = 138°11'53″ = 0.73295798146 rad
∠ C' = γ' = 60.39114806958° = 60°23'29″ = 2.08875624753 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.