# Triangle calculator SSS - result

Please enter the triangle sides:

### Obtuse scalene triangle.

Sides: a = 2   b = 10   c = 11

Area: T = 9.05219334951
Perimeter: p = 23
Semiperimeter: s = 11.5

Angle ∠ A = α = 9.47328720666° = 9°28'22″ = 0.16553328072 rad
Angle ∠ B = β = 55.37664645208° = 55°22'35″ = 0.9676501634 rad
Angle ∠ C = γ = 115.1510663413° = 115°9'2″ = 2.01097582124 rad

Height: ha = 9.05219334951
Height: hb = 1.8110386699
Height: hc = 1.646580609

Median: ma = 10.46442247682
Median: mb = 6.1243724357
Median: mc = 4.66436895265

Inradius: r = 0.78771246517
Circumradius: R = 6.07660499433

Vertex coordinates: A[11; 0] B[0; 0] C[1.13663636364; 1.646580609]
Centroid: CG[4.04554545455; 0.549860203]
Coordinates of the circumscribed circle: U[5.5; -2.58223212259]
Coordinates of the inscribed circle: I[1.5; 0.78771246517]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 170.5277127933° = 170°31'38″ = 0.16553328072 rad
∠ B' = β' = 124.6243535479° = 124°37'25″ = 0.9676501634 rad
∠ C' = γ' = 64.84993365875° = 64°50'58″ = 2.01097582124 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.