# Triangle calculator SSS - result

Please enter the triangle sides:

### Acute scalene triangle.

Sides: a = 17.26   b = 18.44   c = 9.49

Area: T = 81.0177233909
Perimeter: p = 45.19
Semiperimeter: s = 22.595

Angle ∠ A = α = 67.81096979496° = 67°48'35″ = 1.1843502494 rad
Angle ∠ B = β = 81.58661992362° = 81°35'10″ = 1.42439478009 rad
Angle ∠ C = γ = 30.60441028141° = 30°36'15″ = 0.53441423587 rad

Height: ha = 9.38878602444
Height: hb = 8.78771186452
Height: hc = 17.07442326468

Median: ma = 11.85662198866
Median: mb = 10.43991307109
Median: mc = 17.21878853231

Inradius: r = 3.5865626639
Circumradius: R = 9.32203134391

Vertex coordinates: A[9.49; 0] B[0; 0] C[2.52655057956; 17.07442326468]
Centroid: CG[4.00551685985; 5.69114108823]
Coordinates of the circumscribed circle: U[4.745; 8.02220457243]
Coordinates of the inscribed circle: I[4.155; 3.5865626639]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 112.199030205° = 112°11'25″ = 1.1843502494 rad
∠ B' = β' = 98.41438007638° = 98°24'50″ = 1.42439478009 rad
∠ C' = γ' = 149.3965897186° = 149°23'45″ = 0.53441423587 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.