# Triangle calculator SSS - result

Please enter the triangle sides:

### Obtuse isosceles triangle.

Sides: a = 51.08   b = 51.08   c = 96

Area: T = 838.5132603125
Perimeter: p = 198.16
Semiperimeter: s = 99.08

Angle ∠ A = α = 19.99883570875° = 19°59'54″ = 0.34990371762 rad
Angle ∠ B = β = 19.99883570875° = 19°59'54″ = 0.34990371762 rad
Angle ∠ C = γ = 140.0033285825° = 140°12″ = 2.44435183013 rad

Height: ha = 32.83113470292
Height: hb = 32.83113470292
Height: hc = 17.46990125651

Median: ma = 72.52878677475
Median: mb = 72.52878677475
Median: mc = 17.46990125651

Inradius: r = 8.46329854978
Circumradius: R = 74.68798478241

Vertex coordinates: A[96; 0] B[0; 0] C[48; 17.46990125651]
Centroid: CG[48; 5.82330041884]
Coordinates of the circumscribed circle: U[48; -57.2110835259]
Coordinates of the inscribed circle: I[48; 8.46329854978]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 160.0021642912° = 160°6″ = 0.34990371762 rad
∠ B' = β' = 160.0021642912° = 160°6″ = 0.34990371762 rad
∠ C' = γ' = 39.9976714175° = 39°59'48″ = 2.44435183013 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.