24.4 13.1 30.3 triangle

Obtuse scalene triangle.

Sides: a = 24.4   b = 13.1   c = 30.3

Area: T = 155.2990386051
Perimeter: p = 67.8
Semiperimeter: s = 33.9

Angle ∠ A = α = 51.48661164389° = 51°29'10″ = 0.89986022509 rad
Angle ∠ B = β = 24.84402554595° = 24°50'25″ = 0.43435442448 rad
Angle ∠ C = γ = 103.6743628102° = 103°40'25″ = 1.80994461579 rad

Height: ha = 12.72987201681
Height: hb = 23.70884558857
Height: hc = 10.25501904984

Median: ma = 19.9
Median: mb = 26.71774568401
Median: mc = 12.40881626359

Inradius: r = 4.58108373466
Circumradius: R = 15.59219053431

Vertex coordinates: A[30.3; 0] B[0; 0] C[22.14325742574; 10.25501904984]
Centroid: CG[17.48108580858; 3.41767301661]
Coordinates of the circumscribed circle: U[15.15; -3.68657851574]
Coordinates of the inscribed circle: I[20.8; 4.58108373466]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 128.5143883561° = 128°30'50″ = 0.89986022509 rad
∠ B' = β' = 155.165974454° = 155°9'35″ = 0.43435442448 rad
∠ C' = γ' = 76.32663718984° = 76°19'35″ = 1.80994461579 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     