# Triangle calculator SSS - result

Please enter the triangle sides:

### Obtuse scalene triangle.

Sides: a = 7   b = 13   c = 16

Area: T = 44.49771909226
Perimeter: p = 36
Semiperimeter: s = 18

Angle ∠ A = α = 25.33216750167° = 25°19'54″ = 0.44221211341 rad
Angle ∠ B = β = 52.61768015821° = 52°37' = 0.91883364295 rad
Angle ∠ C = γ = 102.0521523401° = 102°3'5″ = 1.781113509 rad

Height: ha = 12.71334831207
Height: hb = 6.84657216804
Height: hc = 5.56221488653

Median: ma = 14.15109716981
Median: mb = 10.5
Median: mc = 6.70882039325

Inradius: r = 2.47220661624
Circumradius: R = 8.18802916646

Vertex coordinates: A[16; 0] B[0; 0] C[4.25; 5.56221488653]
Centroid: CG[6.75; 1.85440496218]
Coordinates of the circumscribed circle: U[8; -1.70879729849]
Coordinates of the inscribed circle: I[5; 2.47220661624]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 154.6688324983° = 154°40'6″ = 0.44221211341 rad
∠ B' = β' = 127.3833198418° = 127°23' = 0.91883364295 rad
∠ C' = γ' = 77.94884765988° = 77°56'55″ = 1.781113509 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.