90 35 60 triangle

Obtuse scalene triangle.

Sides: a = 90   b = 35   c = 60

Area: T = 657.387997954
Perimeter: p = 185
Semiperimeter: s = 92.5

Angle ∠ A = α = 141.2398780794° = 141°14'20″ = 2.46550817564 rad
Angle ∠ B = β = 14.09216737232° = 14°5'30″ = 0.24659461036 rad
Angle ∠ C = γ = 24.67695454829° = 24°40'10″ = 0.43105647936 rad

Height: ha = 14.60884439898
Height: hb = 37.56545702594
Height: hc = 21.91326659847

Median: ma = 19.6855019685
Median: mb = 74.45663630592
Median: mc = 61.33992207319

Inradius: r = 7.10768105896
Circumradius: R = 71.87662382041

Vertex coordinates: A[60; 0] B[0; 0] C[87.29216666667; 21.91326659847]
Centroid: CG[49.09772222222; 7.30442219949]
Coordinates of the circumscribed circle: U[30; 65.31661053521]
Coordinates of the inscribed circle: I[57.5; 7.10768105896]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 38.76112192061° = 38°45'40″ = 2.46550817564 rad
∠ B' = β' = 165.9088326277° = 165°54'30″ = 0.24659461036 rad
∠ C' = γ' = 155.3330454517° = 155°19'50″ = 0.43105647936 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     