16 28 30 triangle

Acute scalene triangle.

Sides: a = 16   b = 28   c = 30

Area: T = 221.249872881
Perimeter: p = 74
Semiperimeter: s = 37

Angle ∠ A = α = 31.78883306171° = 31°47'18″ = 0.5554811033 rad
Angle ∠ B = β = 67.20109687281° = 67°12'3″ = 1.17328781648 rad
Angle ∠ C = γ = 81.01107006548° = 81°39″ = 1.41439034558 rad

Height: ha = 27.65660911012
Height: hb = 15.80334806293
Height: hc = 14.7549915254

Median: ma = 27.8932651362
Median: mb = 19.54548202857
Median: mc = 17.17655640373

Inradius: r = 5.98796953732
Circumradius: R = 15.1876527932

Vertex coordinates: A[30; 0] B[0; 0] C[6.2; 14.7549915254]
Centroid: CG[12.06766666667; 4.9176638418]
Coordinates of the circumscribed circle: U[15; 2.37328949894]
Coordinates of the inscribed circle: I[9; 5.98796953732]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 148.2121669383° = 148°12'42″ = 0.5554811033 rad
∠ B' = β' = 112.7999031272° = 112°47'57″ = 1.17328781648 rad
∠ C' = γ' = 98.98992993452° = 98°59'21″ = 1.41439034558 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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