# 11 24 25 triangle

### Acute scalene triangle.

Sides: a = 11   b = 24   c = 25

Area: T = 130.7676968306
Perimeter: p = 60
Semiperimeter: s = 30

Angle ∠ A = α = 25.84219327632° = 25°50'31″ = 0.45110268118 rad
Angle ∠ B = β = 71.99655469999° = 71°59'44″ = 1.25765593419 rad
Angle ∠ C = γ = 82.16325202369° = 82°9'45″ = 1.43440064999 rad

Height: ha = 23.77658124193
Height: hb = 10.89772473589
Height: hc = 10.46113574645

Median: ma = 23.88799078725
Median: mb = 15.13327459504
Median: mc = 13.86554246239

Inradius: r = 4.35988989435
Circumradius: R = 12.61878653629

Vertex coordinates: A[25; 0] B[0; 0] C[3.4; 10.46113574645]
Centroid: CG[9.46766666667; 3.48771191548]
Coordinates of the circumscribed circle: U[12.5; 1.7210618004]
Coordinates of the inscribed circle: I[6; 4.35988989435]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 154.1588067237° = 154°9'29″ = 0.45110268118 rad
∠ B' = β' = 108.0044453° = 108°16″ = 1.25765593419 rad
∠ C' = γ' = 97.83774797631° = 97°50'15″ = 1.43440064999 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.