11 22 22 triangle

Acute isosceles triangle.

Sides: a = 11   b = 22   c = 22

Area: T = 117.1587746223
Perimeter: p = 55
Semiperimeter: s = 27.5

Angle ∠ A = α = 28.95550243719° = 28°57'18″ = 0.50553605103 rad
Angle ∠ B = β = 75.52224878141° = 75°31'21″ = 1.31881160717 rad
Angle ∠ C = γ = 75.52224878141° = 75°31'21″ = 1.31881160717 rad

Height: ha = 21.30114084041
Height: hb = 10.65107042021
Height: hc = 10.65107042021

Median: ma = 21.30114084041
Median: mb = 13.47221935853
Median: mc = 13.47221935853

Inradius: r = 4.26602816808
Circumradius: R = 11.36107511489

Vertex coordinates: A[22; 0] B[0; 0] C[2.75; 10.65107042021]
Centroid: CG[8.25; 3.5550234734]
Coordinates of the circumscribed circle: U[11; 2.84401877872]
Coordinates of the inscribed circle: I[5.5; 4.26602816808]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 151.0454975628° = 151°2'42″ = 0.50553605103 rad
∠ B' = β' = 104.4787512186° = 104°28'39″ = 1.31881160717 rad
∠ C' = γ' = 104.4787512186° = 104°28'39″ = 1.31881160717 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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