Triangle calculator
Acute scalene triangle.
Sides: a = 52.15440046522 b = 48 c = 60Area: T = 1200
Perimeter: p = 160.1544004652
Semiperimeter: s = 80.07770023261
Angle ∠ A = α = 56.44326902381° = 56°26'34″ = 0.98551107833 rad
Angle ∠ B = β = 50.08216182447° = 50°4'54″ = 0.87440891331 rad
Angle ∠ C = γ = 73.47656915172° = 73°28'32″ = 1.28223927372 rad
Height: ha = 46.01875592652
Height: hb = 50
Height: hc = 40
Median: ma = 47.66553957257
Median: mb = 50.83332578203
Median: mc = 40.15499701199
Inradius: r = 14.98655759474
Circumradius: R = 31.29224027913
Vertex coordinates: A[60; 0] B[0; 0] C[33.46770016772; 40]
Centroid: CG[31.15656672257; 13.33333333333]
Coordinates of the circumscribed circle: U[30; 8.99002512579]
Coordinates of the inscribed circle: I[32.07770023261; 14.98655759474]
Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 123.5577309762° = 123°33'26″ = 0.98551107833 rad
∠ B' = β' = 129.9188381755° = 129°55'6″ = 0.87440891331 rad
∠ C' = γ' = 106.5244308483° = 106°31'28″ = 1.28223927372 rad
Calculate another triangle
How did we calculate this triangle?
1. Input data entered: side b, c and height hc.

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
