200 200 153.07 triangle

Acute isosceles triangle.

Sides: a = 200   b = 200   c = 153.07

Area: T = 14141.87774677
Perimeter: p = 553.07
Semiperimeter: s = 276.535

Angle ∠ A = α = 67.50105229448° = 67°30'2″ = 1.17881063722 rad
Angle ∠ B = β = 67.50105229448° = 67°30'2″ = 1.17881063722 rad
Angle ∠ C = γ = 44.99989541104° = 44°59'56″ = 0.78553799092 rad

Height: ha = 141.4198774678
Height: hb = 141.4198774678
Height: hc = 184.7776605053

Median: ma = 147.3610824
Median: mb = 147.3610824
Median: mc = 184.7776605053

Inradius: r = 51.14395572631
Circumradius: R = 108.2398810829

Vertex coordinates: A[153.07; 0] B[0; 0] C[76.535; 184.7776605053]
Centroid: CG[76.535; 61.59222016844]
Coordinates of the circumscribed circle: U[76.535; 76.53877942241]
Coordinates of the inscribed circle: I[76.535; 51.14395572631]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 112.4999477055° = 112°29'58″ = 1.17881063722 rad
∠ B' = β' = 112.4999477055° = 112°29'58″ = 1.17881063722 rad
∠ C' = γ' = 135.001104589° = 135°4″ = 0.78553799092 rad

How did we calculate this triangle?

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     