# Triangle calculator ASA

Please enter the side of the triangle and two adjacent angles
°
°

### Obtuse scalene triangle.

Sides: a = 25.38656652971   b = 38.89330956715   c = 50

Area: T = 486.1643695894
Perimeter: p = 114.2798760969
Semiperimeter: s = 57.13993804843

Angle ∠ A = α = 30° = 0.52435987756 rad
Angle ∠ B = β = 50° = 0.8732664626 rad
Angle ∠ C = γ = 100° = 1.7455329252 rad

Height: ha = 38.30222221559
Height: hb = 25
Height: hc = 19.44765478358

Median: ma = 42.95661223205
Median: mb = 34.55549964341
Median: mc = 21.29767708056

Inradius: r = 8.50883823411
Circumradius: R = 25.38656652971

Vertex coordinates: A[50; 0] B[0; 0] C[16.31875911167; 19.44765478358]
Centroid: CG[22.10658637056; 6.48221826119]
Coordinates of the circumscribed circle: U[25; -4.40881745177]
Coordinates of the inscribed circle: I[18.24662848128; 8.50883823411]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 150° = 0.52435987756 rad
∠ B' = β' = 130° = 0.8732664626 rad
∠ C' = γ' = 80° = 1.7455329252 rad

# How did we calculate this triangle?

### 1. Calculate the third unknown inner angle ### 2. By using the law of sines, we calculate unknown side a ### 3. By using the law of sines, we calculate last unknown side b 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. ### 4. The triangle circumference is the sum of the lengths of its three sides ### 5. Semiperimeter of the triangle ### 6. The triangle area using Heron's formula ### 7. Calculate the heights of the triangle from its area. ### 8. Calculation of the inner angles of the triangle using a Law of Cosines ### 9. Inradius ### 10. Circumradius ### 11. 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.