Triangle calculator SSS - result

Please enter the triangle sides:

Obtuse scalene triangle.

Sides: a = 3.92   b = 49   c = 48

Area: T = 91.84397713926
Perimeter: p = 100.92
Semiperimeter: s = 50.46

Angle ∠ A = α = 4.47990771565° = 4°28'45″ = 0.07881746438 rad
Angle ∠ B = β = 102.5298547262° = 102°31'43″ = 1.7899460727 rad
Angle ∠ C = γ = 72.99223755811° = 72°59'33″ = 1.27439572827 rad

Height: ha = 46.85770262207
Height: hb = 3.74985620977
Height: hc = 3.82766571414

Median: ma = 48.46329590512
Median: mb = 23.65223402648
Median: mc = 25.14332535683

Inradius: r = 1.8220050959
Circumradius: R = 25.09876234484

Vertex coordinates: A[48; 0] B[0; 0] C[-0.855035; 3.82766571414]
Centroid: CG[15.717655; 1.27655523805]
Coordinates of the circumscribed circle: U[24; 7.34110287262]
Coordinates of the inscribed circle: I[1.46; 1.8220050959]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 175.5210922844° = 175°31'15″ = 0.07881746438 rad
∠ B' = β' = 77.47114527376° = 77°28'17″ = 1.7899460727 rad
∠ C' = γ' = 107.0087624419° = 107°27″ = 1.27439572827 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     