7 7 10 triangle

Obtuse isosceles triangle.

Sides: a = 7   b = 7   c = 10

Area: T = 24.49548974278
Perimeter: p = 24
Semiperimeter: s = 12

Angle ∠ A = α = 44.41553085972° = 44°24'55″ = 0.77551933733 rad
Angle ∠ B = β = 44.41553085972° = 44°24'55″ = 0.77551933733 rad
Angle ∠ C = γ = 91.16993828056° = 91°10'10″ = 1.5911205907 rad

Height: ha = 6.99985421222
Height: hb = 6.99985421222
Height: hc = 4.89989794856

Median: ma = 7.8989866919
Median: mb = 7.8989866919
Median: mc = 4.89989794856

Inradius: r = 2.04112414523
Circumradius: R = 5.00110415582

Vertex coordinates: A[10; 0] B[0; 0] C[5; 4.89989794856]
Centroid: CG[5; 1.63329931619]
Coordinates of the circumscribed circle: U[5; -0.10220620726]
Coordinates of the inscribed circle: I[5; 2.04112414523]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 135.5854691403° = 135°35'5″ = 0.77551933733 rad
∠ B' = β' = 135.5854691403° = 135°35'5″ = 0.77551933733 rad
∠ C' = γ' = 88.83106171944° = 88°49'50″ = 1.5911205907 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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