17 25 25 triangle

Acute isosceles triangle.

Sides: a = 17   b = 25   c = 25

Area: T = 199.8440405074
Perimeter: p = 67
Semiperimeter: s = 33.5

Angle ∠ A = α = 39.75437481402° = 39°45'13″ = 0.69438337951 rad
Angle ∠ B = β = 70.12331259299° = 70°7'23″ = 1.22438794293 rad
Angle ∠ C = γ = 70.12331259299° = 70°7'23″ = 1.22438794293 rad

Height: ha = 23.5110635891
Height: hb = 15.98772324059
Height: hc = 15.98772324059

Median: ma = 23.5110635891
Median: mb = 17.3422145196
Median: mc = 17.3422145196

Inradius: r = 5.96553852261
Circumradius: R = 13.29218565643

Vertex coordinates: A[25; 0] B[0; 0] C[5.78; 15.98772324059]
Centroid: CG[10.26; 5.32990774686]
Coordinates of the circumscribed circle: U[12.5; 4.51992312319]
Coordinates of the inscribed circle: I[8.5; 5.96553852261]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 140.246625186° = 140°14'47″ = 0.69438337951 rad
∠ B' = β' = 109.877687407° = 109°52'37″ = 1.22438794293 rad
∠ C' = γ' = 109.877687407° = 109°52'37″ = 1.22438794293 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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