1 28 28 triangle

Acute isosceles triangle.

Sides: a = 1   b = 28   c = 28

Area: T = 13.99877676792
Perimeter: p = 57
Semiperimeter: s = 28.5

Angle ∠ A = α = 2.04663866074° = 2°2'47″ = 0.03657161841 rad
Angle ∠ B = β = 88.97768066963° = 88°58'37″ = 1.55329382348 rad
Angle ∠ C = γ = 88.97768066963° = 88°58'37″ = 1.55329382348 rad

Height: ha = 27.99655353583
Height: hb = 10.9998405485
Height: hc = 10.9998405485

Median: ma = 27.99655353583
Median: mb = 14.01878457689
Median: mc = 14.01878457689

Inradius: r = 0.49111497431
Circumradius: R = 14.00222326768

Vertex coordinates: A[28; 0] B[0; 0] C[0.01878571429; 10.9998405485]
Centroid: CG[9.33992857143; 0.33332801828]
Coordinates of the circumscribed circle: U[14; 0.25500398692]
Coordinates of the inscribed circle: I[0.5; 0.49111497431]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 177.9543613393° = 177°57'13″ = 0.03657161841 rad
∠ B' = β' = 91.02331933037° = 91°1'23″ = 1.55329382348 rad
∠ C' = γ' = 91.02331933037° = 91°1'23″ = 1.55329382348 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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