# 3 24 25 triangle

### Obtuse scalene triangle.

Sides: a = 3   b = 24   c = 25

Area: T = 34.58332329316
Perimeter: p = 52
Semiperimeter: s = 26

Angle ∠ A = α = 6.62196277953° = 6°37'11″ = 0.11655343003 rad
Angle ∠ B = β = 67.25327519916° = 67°15'10″ = 1.17437819533 rad
Angle ∠ C = γ = 106.1287620213° = 106°7'39″ = 1.85222764 rad

Height: ha = 23.05554886211
Height: hb = 2.88219360776
Height: hc = 2.76766586345

Median: ma = 24.45991496173
Median: mb = 13.1532946438
Median: mc = 11.67326175299

Inradius: r = 1.33301243435
Circumradius: R = 13.01220859692

Vertex coordinates: A[25; 0] B[0; 0] C[1.16; 2.76766586345]
Centroid: CG[8.72; 0.92222195448]
Coordinates of the circumscribed circle: U[12.5; -3.61444683248]
Coordinates of the inscribed circle: I[2; 1.33301243435]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 173.3880372205° = 173°22'49″ = 0.11655343003 rad
∠ B' = β' = 112.7477248008° = 112°44'50″ = 1.17437819533 rad
∠ C' = γ' = 73.87223797868° = 73°52'21″ = 1.85222764 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 ### 6. Inradius ### 7. Circumradius ### 8. Calculation of medians #### Look also our friend's collection of math examples and problems:

See more informations about triangles or more information about solving triangles.