27 30 30 triangle

Acute isosceles triangle.

Sides: a = 27   b = 30   c = 30

Area: T = 361.6776564765
Perimeter: p = 87
Semiperimeter: s = 43.5

Angle ∠ A = α = 53.48773679008° = 53°29'15″ = 0.93435306781 rad
Angle ∠ B = β = 63.25663160496° = 63°15'23″ = 1.10440309877 rad
Angle ∠ C = γ = 63.25663160496° = 63°15'23″ = 1.10440309877 rad

Height: ha = 26.79108566492
Height: hb = 24.11217709843
Height: hc = 24.11217709843

Median: ma = 26.79108566492
Median: mb = 24.28796210844
Median: mc = 24.28796210844

Inradius: r = 8.31444037877
Circumradius: R = 16.79767753287

Vertex coordinates: A[30; 0] B[0; 0] C[12.15; 24.11217709843]
Centroid: CG[14.05; 8.03772569948]
Coordinates of the circumscribed circle: U[15; 7.55985488979]
Coordinates of the inscribed circle: I[13.5; 8.31444037877]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 126.5132632099° = 126°30'45″ = 0.93435306781 rad
∠ B' = β' = 116.744368395° = 116°44'37″ = 1.10440309877 rad
∠ C' = γ' = 116.744368395° = 116°44'37″ = 1.10440309877 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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