Triangle calculator SSS - result

Please enter the triangle sides:

Right scalene triangle.

Sides: a = 56   b = 33   c = 65

Area: T = 924
Perimeter: p = 154
Semiperimeter: s = 77

Angle ∠ A = α = 59.49897625939° = 59°29'23″ = 1.03882922285 rad
Angle ∠ B = β = 30.51102374061° = 30°30'37″ = 0.53325040983 rad
Angle ∠ C = γ = 90° = 1.57107963268 rad

Height: ha = 33
Height: hb = 56
Height: hc = 28.43107692308

Median: ma = 43.27881700168
Median: mb = 58.38802192528
Median: mc = 32.5

Inradius: r = 12
Circumradius: R = 32.5

Vertex coordinates: A[65; 0] B[0; 0] C[48.24661538462; 28.43107692308]
Centroid: CG[37.74987179487; 9.47769230769]
Coordinates of the circumscribed circle: U[32.5; -0]
Coordinates of the inscribed circle: I[44; 12]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 120.5110237406° = 120°30'37″ = 1.03882922285 rad
∠ B' = β' = 149.4989762594° = 149°29'23″ = 0.53325040983 rad
∠ C' = γ' = 90° = 1.57107963268 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     