232 100 171.3 triangle

Obtuse scalene triangle.

Sides: a = 232   b = 100   c = 171.3

Area: T = 7762.362200483
Perimeter: p = 503.3
Semiperimeter: s = 251.65

Angle ∠ A = α = 115.0032598816° = 115°9″ = 2.00771739977 rad
Angle ∠ B = β = 22.99444303335° = 22°59'40″ = 0.40113285189 rad
Angle ∠ C = γ = 42.00329708501° = 42°11″ = 0.7333090137 rad

Height: ha = 66.91769138347
Height: hb = 155.2477240097
Height: hc = 90.62988617026

Median: ma = 78.84106303881
Median: mb = 197.6966345439
Median: mc = 156.7687590719

Inradius: r = 30.84658653083
Circumradius: R = 127.995454591

Vertex coordinates: A[171.3; 0] B[0; 0] C[213.5665936953; 90.62988617026]
Centroid: CG[128.2898645651; 30.21096205675]
Coordinates of the circumscribed circle: U[85.65; 95.11440435625]
Coordinates of the inscribed circle: I[151.65; 30.84658653083]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 64.99774011836° = 64°59'51″ = 2.00771739977 rad
∠ B' = β' = 157.0065569666° = 157°20″ = 0.40113285189 rad
∠ C' = γ' = 137.997702915° = 137°59'49″ = 0.7333090137 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     