# Triangle calculator SSS - result

Please enter the triangle sides:

### Obtuse scalene triangle.

Sides: a = 3   b = 24   c = 26

Area: T = 27.99004928272
Perimeter: p = 53
Semiperimeter: s = 26.5

Angle ∠ A = α = 5.13105088746° = 5°7'50″ = 0.09895442722 rad
Angle ∠ B = β = 45.67657648661° = 45°40'33″ = 0.79771924853 rad
Angle ∠ C = γ = 129.1943726259° = 129°11'37″ = 2.25548558961 rad

Height: ha = 18.66003285515
Height: hb = 2.32550410689
Height: hc = 2.14661917559

Median: ma = 24.97549874875
Median: mb = 14.08990028036
Median: mc = 11.11330553854

Inradius: r = 1.05328487859
Circumradius: R = 16.77438972533

Vertex coordinates: A[26; 0] B[0; 0] C[2.09661538462; 2.14661917559]
Centroid: CG[9.36553846154; 0.7155397252]
Coordinates of the circumscribed circle: U[13; -10.66001711809]
Coordinates of the inscribed circle: I[2.5; 1.05328487859]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 174.8699491125° = 174°52'10″ = 0.09895442722 rad
∠ B' = β' = 134.3244235134° = 134°19'27″ = 0.79771924853 rad
∠ C' = γ' = 50.80662737407° = 50°48'23″ = 2.25548558961 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.