16 25 28 triangle

Acute scalene triangle.

Sides: a = 16   b = 25   c = 28

Area: T = 198.5244400264
Perimeter: p = 69
Semiperimeter: s = 34.5

Angle ∠ A = α = 34.55660777693° = 34°33'22″ = 0.60331173336 rad
Angle ∠ B = β = 62.40881713429° = 62°24'29″ = 1.08992280701 rad
Angle ∠ C = γ = 83.03657508879° = 83°2'9″ = 1.44992472499 rad

Height: ha = 24.81655500329
Height: hb = 15.88219520211
Height: hc = 14.18803143045

Median: ma = 25.30881014697
Median: mb = 19.07222311228
Median: mc = 15.63664957711

Inradius: r = 5.75443304424
Circumradius: R = 14.10440597341

Vertex coordinates: A[28; 0] B[0; 0] C[7.41107142857; 14.18803143045]
Centroid: CG[11.80435714286; 4.72767714348]
Coordinates of the circumscribed circle: U[14; 1.71101172428]
Coordinates of the inscribed circle: I[9.5; 5.75443304424]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 145.4443922231° = 145°26'38″ = 0.60331173336 rad
∠ B' = β' = 117.5921828657° = 117°35'31″ = 1.08992280701 rad
∠ C' = γ' = 96.96442491121° = 96°57'51″ = 1.44992472499 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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