# 3473 4822 5009.12 triangle

### Acute scalene triangle.

Sides: a = 3473   b = 4822   c = 5009.12

Area: T = 7973903.164374
Perimeter: p = 13304.12
Semiperimeter: s = 6652.06

Angle ∠ A = α = 41.31993944448° = 41°19'10″ = 0.7211159478 rad
Angle ∠ B = β = 66.45105857789° = 66°27'2″ = 1.16597815117 rad
Angle ∠ C = γ = 72.23300197763° = 72°13'48″ = 1.26106516639 rad

Height: ha = 4591.943962784
Height: hb = 3307.301118778
Height: hc = 3183.754409802

Median: ma = 4599.57107775
Median: mb = 3572.616600052
Median: mc = 3374.001143841

Inradius: r = 1198.712185223
Circumradius: R = 2630.041074505

Vertex coordinates: A[5009.12; 0] B[0; 0] C[1387.60218317; 3183.754409802]
Centroid: CG[2132.241061057; 1061.251136601]
Coordinates of the circumscribed circle: U[2504.56; 802.6798968828]
Coordinates of the inscribed circle: I[1830.06; 1198.712185223]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 138.6810605555° = 138°40'50″ = 0.7211159478 rad
∠ B' = β' = 113.5499414221° = 113°32'58″ = 1.16597815117 rad
∠ C' = γ' = 107.7769980224° = 107°46'12″ = 1.26106516639 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    