# Triangle calculator SSS - result

Please enter the triangle sides:

### Obtuse scalene triangle.

Sides: a = 99.39   b = 25.72   c = 96

Area: T = 1234.565998155
Perimeter: p = 221.11
Semiperimeter: s = 110.555

Angle ∠ A = α = 90.01099050284° = 90°36″ = 1.57109692022 rad
Angle ∠ B = β = 14.99875976875° = 14°59'51″ = 0.26217574595 rad
Angle ∠ C = γ = 74.99224972842° = 74°59'33″ = 1.30988659919 rad

Height: ha = 24.84327403472
Height: hb = 965.9999985655
Height: hc = 25.72199996157

Median: ma = 49.69107051168
Median: mb = 96.86597256345
Median: mc = 54.46604925611

Inradius: r = 11.16769303202
Circumradius: R = 49.69550007426

Vertex coordinates: A[96; 0] B[0; 0] C[96.00444463542; 25.72199996157]
Centroid: CG[64.00114821181; 8.57333332052]
Coordinates of the circumscribed circle: U[48; 12.86882982094]
Coordinates of the inscribed circle: I[84.835; 11.16769303202]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 89.99900949716° = 89°59'24″ = 1.57109692022 rad
∠ B' = β' = 165.0022402313° = 165°9″ = 0.26217574595 rad
∠ C' = γ' = 105.0087502716° = 105°27″ = 1.30988659919 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   