# Triangle calculator SSS - result

Please enter the triangle sides:

### Acute isosceles triangle.

Sides: a = 26   b = 29   c = 29

Area: T = 336.9998516317
Perimeter: p = 84
Semiperimeter: s = 42

Angle ∠ A = α = 53.26662374983° = 53°15'58″ = 0.93296712245 rad
Angle ∠ B = β = 63.36768812508° = 63°22'1″ = 1.10659607145 rad
Angle ∠ C = γ = 63.36768812508° = 63°22'1″ = 1.10659607145 rad

Height: ha = 25.92329627936
Height: hb = 23.24112769874
Height: hc = 23.24112769874

Median: ma = 25.92329627936
Median: mb = 23.41547389479
Median: mc = 23.41547389479

Inradius: r = 8.0243774198
Circumradius: R = 16.22111396648

Vertex coordinates: A[29; 0] B[0; 0] C[11.65551724138; 23.24112769874]
Centroid: CG[13.55217241379; 7.74770923291]
Coordinates of the circumscribed circle: U[14.5; 7.2721545367]
Coordinates of the inscribed circle: I[13; 8.0243774198]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 126.7343762502° = 126°44'2″ = 0.93296712245 rad
∠ B' = β' = 116.6333118749° = 116°37'59″ = 1.10659607145 rad
∠ C' = γ' = 116.6333118749° = 116°37'59″ = 1.10659607145 rad

# How did we calculate this triangle?

### 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.