79.37 79.37 112.25 triangle

Obtuse isosceles triangle.

Sides: a = 79.37   b = 79.37   c = 112.25

Area: T = 3149.798844251
Perimeter: p = 270.99
Semiperimeter: s = 135.495

Angle ∠ A = α = 44.99880247608° = 44°59'53″ = 0.7855363689 rad
Angle ∠ B = β = 44.99880247608° = 44°59'53″ = 0.7855363689 rad
Angle ∠ C = γ = 90.00439504785° = 90°14″ = 1.57108652757 rad

Height: ha = 79.37699998113
Height: hb = 79.37699998113
Height: hc = 56.12111303789

Median: ma = 88.74108050166
Median: mb = 88.74108050166
Median: mc = 56.12111303789

Inradius: r = 23.24766027714
Circumradius: R = 56.12550001334

Vertex coordinates: A[112.25; 0] B[0; 0] C[56.125; 56.12111303789]
Centroid: CG[56.125; 18.70770434596]
Coordinates of the circumscribed circle: U[56.125; -0.00438697546]
Coordinates of the inscribed circle: I[56.125; 23.24766027714]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 135.0021975239° = 135°7″ = 0.7855363689 rad
∠ B' = β' = 135.0021975239° = 135°7″ = 0.7855363689 rad
∠ C' = γ' = 89.99660495215° = 89°59'46″ = 1.57108652757 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     