17 21 27 triangle

Acute scalene triangle.

Sides: a = 17   b = 21   c = 27

Area: T = 178.549982493
Perimeter: p = 65
Semiperimeter: s = 32.5

Angle ∠ A = α = 39.02327570225° = 39°1'22″ = 0.68110755932 rad
Angle ∠ B = β = 51.05774891935° = 51°3'27″ = 0.89111212942 rad
Angle ∠ C = γ = 89.9219753784° = 89°55'11″ = 1.56993957661 rad

Height: ha = 210.9999794035
Height: hb = 176.9999833267
Height: hc = 13.22222092541

Median: ma = 22.64439837484
Median: mb = 19.96987255477
Median: mc = 13.51985058346

Inradius: r = 5.49223023055
Circumradius: R = 13.55000132406

Vertex coordinates: A[27; 0] B[0; 0] C[10.68551851852; 13.22222092541]
Centroid: CG[12.56217283951; 4.40774030847]
Coordinates of the circumscribed circle: U[13.5; 0.01989075816]
Coordinates of the inscribed circle: I[11.5; 5.49223023055]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 140.9777242977° = 140°58'38″ = 0.68110755932 rad
∠ B' = β' = 128.9432510806° = 128°56'33″ = 0.89111212942 rad
∠ C' = γ' = 90.0880246216° = 90°4'49″ = 1.56993957661 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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