4 17 17 triangle

Acute isosceles triangle.

Sides: a = 4   b = 17   c = 17

Area: T = 33.76438860323
Perimeter: p = 38
Semiperimeter: s = 19

Angle ∠ A = α = 13.51326540612° = 13°30'46″ = 0.23658403041 rad
Angle ∠ B = β = 83.24436729694° = 83°14'37″ = 1.45328761748 rad
Angle ∠ C = γ = 83.24436729694° = 83°14'37″ = 1.45328761748 rad

Height: ha = 16.88219430161
Height: hb = 3.97222218861
Height: hc = 3.97222218861

Median: ma = 16.88219430161
Median: mb = 8.95882364336
Median: mc = 8.95882364336

Inradius: r = 1.77770466333
Circumradius: R = 8.55994412836

Vertex coordinates: A[17; 0] B[0; 0] C[0.47105882353; 3.97222218861]
Centroid: CG[5.82435294118; 1.3244073962]
Coordinates of the circumscribed circle: U[8.5; 1.00769930922]
Coordinates of the inscribed circle: I[2; 1.77770466333]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 166.4877345939° = 166°29'14″ = 0.23658403041 rad
∠ B' = β' = 96.75663270306° = 96°45'23″ = 1.45328761748 rad
∠ C' = γ' = 96.75663270306° = 96°45'23″ = 1.45328761748 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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