7 25 25 triangle

Acute isosceles triangle.

Sides: a = 7   b = 25   c = 25

Area: T = 86.63882565614
Perimeter: p = 57
Semiperimeter: s = 28.5

Angle ∠ A = α = 16.09656924946° = 16°5'44″ = 0.28109228294 rad
Angle ∠ B = β = 81.95221537527° = 81°57'8″ = 1.43303349121 rad
Angle ∠ C = γ = 81.95221537527° = 81°57'8″ = 1.43303349121 rad

Height: ha = 24.7543787589
Height: hb = 6.93110605249
Height: hc = 6.93110605249

Median: ma = 24.7543787589
Median: mb = 13.44443296597
Median: mc = 13.44443296597

Inradius: r = 3.04399388267
Circumradius: R = 12.62443306757

Vertex coordinates: A[25; 0] B[0; 0] C[0.98; 6.93110605249]
Centroid: CG[8.66; 2.31103535083]
Coordinates of the circumscribed circle: U[12.5; 1.76774062946]
Coordinates of the inscribed circle: I[3.5; 3.04399388267]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 163.9044307505° = 163°54'16″ = 0.28109228294 rad
∠ B' = β' = 98.04878462473° = 98°2'52″ = 1.43303349121 rad
∠ C' = γ' = 98.04878462473° = 98°2'52″ = 1.43303349121 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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