# 17 23 29 triangle

### Obtuse scalene triangle.

Sides: a = 17   b = 23   c = 29

Area: T = 195.4155422882
Perimeter: p = 69
Semiperimeter: s = 34.5

Angle ∠ A = α = 35.87703643042° = 35°52'13″ = 0.6266055961 rad
Angle ∠ B = β = 52.44442226556° = 52°26'39″ = 0.9155324359 rad
Angle ∠ C = γ = 91.68554130402° = 91°41'7″ = 1.66002123336 rad

Height: ha = 22.99900497508
Height: hb = 16.9932645468
Height: hc = 13.4776925716

Median: ma = 24.7543787589
Median: mb = 20.80326440627
Median: mc = 14.09878721799

Inradius: r = 5.6644215156
Circumradius: R = 14.50662756982

Vertex coordinates: A[29; 0] B[0; 0] C[10.36220689655; 13.4776925716]
Centroid: CG[13.12106896552; 4.4922308572]
Coordinates of the circumscribed circle: U[14.5; -0.42766551676]
Coordinates of the inscribed circle: I[11.5; 5.6644215156]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 144.1329635696° = 144°7'47″ = 0.6266055961 rad
∠ B' = β' = 127.5565777344° = 127°33'21″ = 0.9155324359 rad
∠ C' = γ' = 88.31545869598° = 88°18'53″ = 1.66002123336 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.