# 7 27 29 triangle

### Obtuse scalene triangle.

Sides: a = 7   b = 27   c = 29

Area: T = 93.17882565838
Perimeter: p = 63
Semiperimeter: s = 31.5

Angle ∠ A = α = 13.76987180931° = 13°46'7″ = 0.24403094645 rad
Angle ∠ B = β = 66.637721368° = 66°38'14″ = 1.16330387831 rad
Angle ∠ C = γ = 99.59440682269° = 99°35'39″ = 1.7388244406 rad

Height: ha = 26.62223590239
Height: hb = 6.90220930803
Height: hc = 6.4266086661

Median: ma = 27.79883812478
Median: mb = 16.21095650774
Median: mc = 13.37697419571

Inradius: r = 2.95880398915
Circumradius: R = 14.70656840323

Vertex coordinates: A[29; 0] B[0; 0] C[2.7765862069; 6.4266086661]
Centroid: CG[10.5921954023; 2.1422028887]
Coordinates of the circumscribed circle: U[14.5; -2.45109473387]
Coordinates of the inscribed circle: I[4.5; 2.95880398915]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 166.2311281907° = 166°13'53″ = 0.24403094645 rad
∠ B' = β' = 113.363278632° = 113°21'46″ = 1.16330387831 rad
∠ C' = γ' = 80.40659317731° = 80°24'21″ = 1.7388244406 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.