38 38 53.74 triangle

Right isosceles triangle.

Sides: a = 38   b = 38   c = 53.74

Area: T = 7221.999999993
Perimeter: p = 129.74
Semiperimeter: s = 64.87

Angle ∠ A = α = 455.0001230034° = 45° = 0.78554003102 rad
Angle ∠ B = β = 455.0001230034° = 45° = 0.78554003102 rad
Angle ∠ C = γ = 909.9997539932° = 89°59'59″ = 1.57107920332 rad

Height: ha = 387.9999999996
Height: hb = 387.9999999996
Height: hc = 26.87701153701

Median: ma = 42.4855218606
Median: mb = 42.4855218606
Median: mc = 26.87701153701

Inradius: r = 11.1329952212
Circumradius: R = 26.87700000002

Vertex coordinates: A[53.74; 0] B[0; 0] C[26.87; 26.87701153701]
Centroid: CG[26.87; 8.95767051234]
Coordinates of the circumscribed circle: U[26.87; 00.0001153698]
Coordinates of the inscribed circle: I[26.87; 11.1329952212]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 1354.999876997° = 135° = 0.78554003102 rad
∠ B' = β' = 1354.999876997° = 135° = 0.78554003102 rad
∠ C' = γ' = 900.0002460068° = 90°1″ = 1.57107920332 rad

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. 1. The triangle circumference is the sum of the lengths of its three sides 2. Semiperimeter of the triangle 3. The triangle area using Heron's formula 4. Calculate the heights of the triangle from its area. 5. Calculation of the inner angles of the triangle using a Law of Cosines     