3.16 4.47 3.16 triangle

Obtuse isosceles triangle.

Sides: a = 3.16   b = 4.47   c = 3.16

Area: T = 4.99327994111
Perimeter: p = 10.79
Semiperimeter: s = 5.395

Angle ∠ A = α = 44.98660857364° = 44°59'10″ = 0.78551553137 rad
Angle ∠ B = β = 90.02878285272° = 90°1'40″ = 1.57112820262 rad
Angle ∠ C = γ = 44.98660857364° = 44°59'10″ = 0.78551553137 rad

Height: ha = 3.16599996273
Height: hb = 2.23439147253
Height: hc = 3.16599996273

Median: ma = 3.53436737257
Median: mb = 2.23439147253
Median: mc = 3.53436737257

Inradius: r = 0.92554493811
Circumradius: R = 2.23550002636

Vertex coordinates: A[3.16; 0] B[0; 0] C[-0.00215348101; 3.16599996273]
Centroid: CG[1.053282173; 1.05333332091]
Coordinates of the circumscribed circle: U[1.58; 1.58107675915]
Coordinates of the inscribed circle: I[0.925; 0.92554493811]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 135.0143914264° = 135°50″ = 0.78551553137 rad
∠ B' = β' = 89.97221714728° = 89°58'20″ = 1.57112820262 rad
∠ C' = γ' = 135.0143914264° = 135°50″ = 0.78551553137 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     