14 21 25 triangle

Acute scalene triangle.

Sides: a = 14   b = 21   c = 25

Area: T = 146.9699384567
Perimeter: p = 60
Semiperimeter: s = 30

Angle ∠ A = α = 34.048773237° = 34°2'52″ = 0.59442450327 rad
Angle ∠ B = β = 57.12216504356° = 57°7'18″ = 0.99769608743 rad
Angle ∠ C = γ = 88.83106171944° = 88°49'50″ = 1.55503867466 rad

Height: ha = 20.99656263667
Height: hb = 13.99770842445
Height: hc = 11.75875507654

Median: ma = 22
Median: mb = 17.32877234512
Median: mc = 12.73877392029

Inradius: r = 4.89989794856
Circumradius: R = 12.50326038955

Vertex coordinates: A[25; 0] B[0; 0] C[7.6; 11.75875507654]
Centroid: CG[10.86766666667; 3.91991835885]
Coordinates of the circumscribed circle: U[12.5; 0.25551551815]
Coordinates of the inscribed circle: I[9; 4.89989794856]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 145.952226763° = 145°57'8″ = 0.59442450327 rad
∠ B' = β' = 122.8788349564° = 122°52'42″ = 0.99769608743 rad
∠ C' = γ' = 91.16993828056° = 91°10'10″ = 1.55503867466 rad

Calculate another triangle




How did we calculate this triangle?

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.


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