9 9 16 triangle

Obtuse isosceles triangle.

Sides: a = 9   b = 9   c = 16

Area: T = 32.98548450049
Perimeter: p = 34
Semiperimeter: s = 17

Angle ∠ A = α = 27.26660444507° = 27°15'58″ = 0.47658822497 rad
Angle ∠ B = β = 27.26660444507° = 27°15'58″ = 0.47658822497 rad
Angle ∠ C = γ = 125.4687911099° = 125°28'4″ = 2.19898281543 rad

Height: ha = 7.33299655567
Height: hb = 7.33299655567
Height: hc = 4.12331056256

Median: ma = 12.17657956619
Median: mb = 12.17657956619
Median: mc = 4.12331056256

Inradius: r = 1.94402850003
Circumradius: R = 9.8232692814

Vertex coordinates: A[16; 0] B[0; 0] C[8; 4.12331056256]
Centroid: CG[8; 1.37443685419]
Coordinates of the circumscribed circle: U[8; -5.76995871884]
Coordinates of the inscribed circle: I[8; 1.94402850003]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 152.7343955549° = 152°44'2″ = 0.47658822497 rad
∠ B' = β' = 152.7343955549° = 152°44'2″ = 0.47658822497 rad
∠ C' = γ' = 54.53220889015° = 54°31'56″ = 2.19898281543 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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