# 8 29 29 triangle

### Acute isosceles triangle.

Sides: a = 8   b = 29   c = 29

Area: T = 114.8911252931
Perimeter: p = 66
Semiperimeter: s = 33

Angle ∠ A = α = 15.85662835324° = 15°51'23″ = 0.27767443548 rad
Angle ∠ B = β = 82.07218582338° = 82°4'19″ = 1.43224241494 rad
Angle ∠ C = γ = 82.07218582338° = 82°4'19″ = 1.43224241494 rad

Height: ha = 28.72328132327
Height: hb = 7.92435346849
Height: hc = 7.92435346849

Median: ma = 28.72328132327
Median: mb = 15.56443824163
Median: mc = 15.56443824163

Inradius: r = 3.48215531191
Circumradius: R = 14.64399308659

Vertex coordinates: A[29; 0] B[0; 0] C[1.10334482759; 7.92435346849]
Centroid: CG[10.03444827586; 2.64111782283]
Coordinates of the circumscribed circle: U[14.5; 2.01993008091]
Coordinates of the inscribed circle: I[4; 3.48215531191]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 164.1443716468° = 164°8'37″ = 0.27767443548 rad
∠ B' = β' = 97.92881417662° = 97°55'41″ = 1.43224241494 rad
∠ C' = γ' = 97.92881417662° = 97°55'41″ = 1.43224241494 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.