# 17 29 29 triangle

### Acute isosceles triangle.

Sides: a = 17   b = 29   c = 29

Area: T = 235.6743900761
Perimeter: p = 75
Semiperimeter: s = 37.5

Angle ∠ A = α = 34.08876932302° = 34°5'16″ = 0.59549424813 rad
Angle ∠ B = β = 72.95661533849° = 72°57'22″ = 1.27333250862 rad
Angle ∠ C = γ = 72.95661533849° = 72°57'22″ = 1.27333250862 rad

Height: ha = 27.7266341266
Height: hb = 16.25333724663
Height: hc = 16.25333724663

Median: ma = 27.7266341266
Median: mb = 18.83548082018
Median: mc = 18.83548082018

Inradius: r = 6.28546373536
Circumradius: R = 15.16660832551

Vertex coordinates: A[29; 0] B[0; 0] C[4.98327586207; 16.25333724663]
Centroid: CG[11.32875862069; 5.41877908221]
Coordinates of the circumscribed circle: U[14.5; 4.44552312989]
Coordinates of the inscribed circle: I[8.5; 6.28546373536]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 145.912230677° = 145°54'44″ = 0.59549424813 rad
∠ B' = β' = 107.0443846615° = 107°2'38″ = 1.27333250862 rad
∠ C' = γ' = 107.0443846615° = 107°2'38″ = 1.27333250862 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.