Triangle calculator
Right scalene triangle.
Sides: a = 145.7899471499 b = 111.1 c = 94.4Area: T = 5243.92
Perimeter: p = 351.2899471499
Semiperimeter: s = 175.645473575
Angle ∠ A = α = 90° = 1.57107963268 rad
Angle ∠ B = β = 49.64659439969° = 49°38'45″ = 0.8666485183 rad
Angle ∠ C = γ = 40.35440560031° = 40°21'15″ = 0.70443111438 rad
Height: ha = 71.93882537858
Height: hb = 94.4
Height: hc = 111.1
Median: ma = 72.89547357496
Median: mb = 109.5321559379
Median: mc = 120.7110604339
Inradius: r = 29.85552642504
Circumradius: R = 72.89547357496
Vertex coordinates: A[94.4; 0] B[0; 0] C[94.4; 111.1]
Centroid: CG[62.93333333333; 37.03333333333]
Coordinates of the circumscribed circle: U[47.2; 55.55]
Coordinates of the inscribed circle: I[64.54547357496; 29.85552642504]
Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 90° = 1.57107963268 rad
∠ B' = β' = 130.3544056003° = 130°21'15″ = 0.8666485183 rad
∠ C' = γ' = 139.6465943997° = 139°38'45″ = 0.70443111438 rad
Calculate another triangle
How did we calculate this triangle?
1. Input data entered: side b, c and angle α.

2. Calculation of the third side a of the triangle using a Law of Cosines

Now we know the lengths of all three sides of the triangle and the triangle is uniquely determined. Next we calculate another its characteristics - same procedure as calculation of the triangle from the known three sides SSS.

3. The triangle circumference is the sum of the lengths of its three sides

4. Semiperimeter of the triangle

5. The triangle area using Heron's formula

6. Calculate the heights of the triangle from its area.

7. Calculation of the inner angles of the triangle using a Law of Cosines

8. Inradius

9. Circumradius
