# Triangle calculator SSS - result

Please enter the triangle sides:

### Acute scalene triangle.

Sides: a = 180   b = 329   c = 350.91

Area: T = 29284.88657918
Perimeter: p = 859.91
Semiperimeter: s = 429.955

Angle ∠ A = α = 30.48554731368° = 30°29'8″ = 0.53220718803 rad
Angle ∠ B = β = 68.01328761859° = 68°46″ = 1.18770486232 rad
Angle ∠ C = γ = 81.50216506773° = 81°30'6″ = 1.42224721501 rad

Height: ha = 325.3887619909
Height: hb = 178.0243621835
Height: hc = 166.9088243093

Median: ma = 328.0088253021
Median: mb = 225.1865843361
Median: mc = 198.8376724412

Inradius: r = 68.11215135115
Circumradius: R = 177.4032861904

Vertex coordinates: A[350.91; 0] B[0; 0] C[67.39216789205; 166.9088243093]
Centroid: CG[139.4343892974; 55.63660810309]
Coordinates of the circumscribed circle: U[175.455; 26.21767577462]
Coordinates of the inscribed circle: I[100.955; 68.11215135115]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 149.5154526863° = 149°30'52″ = 0.53220718803 rad
∠ B' = β' = 111.9877123814° = 111°59'14″ = 1.18770486232 rad
∠ C' = γ' = 98.49883493227° = 98°29'54″ = 1.42224721501 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    