# 14 18 24 triangle

### Obtuse scalene triangle.

Sides: a = 14   b = 18   c = 24

Area: T = 125.221980674
Perimeter: p = 56
Semiperimeter: s = 28

Angle ∠ A = α = 35.43109446873° = 35°25'51″ = 0.61883866419 rad
Angle ∠ B = β = 48.19896851042° = 48°11'23″ = 0.84110686706 rad
Angle ∠ C = γ = 96.37993702084° = 96°22'46″ = 1.68221373411 rad

Height: ha = 17.889854382
Height: hb = 13.913331186
Height: hc = 10.4354983895

Median: ma = 20.02549843945
Median: mb = 17.46442491966
Median: mc = 10.77703296143

Inradius: r = 4.4722135955
Circumradius: R = 12.07547670785

Vertex coordinates: A[24; 0] B[0; 0] C[9.33333333333; 10.4354983895]
Centroid: CG[11.11111111111; 3.4788327965]
Coordinates of the circumscribed circle: U[12; -1.34216407865]
Coordinates of the inscribed circle: I[10; 4.4722135955]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 144.5699055313° = 144°34'9″ = 0.61883866419 rad
∠ B' = β' = 131.8110314896° = 131°48'37″ = 0.84110686706 rad
∠ C' = γ' = 83.62106297916° = 83°37'14″ = 1.68221373411 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.