# Triangle calculator SSS - result

Please enter the triangle sides:

### Equilateral triangle.

Sides: a = 0.15   b = 0.15   c = 0.15

Area: T = 0.01097427858
Perimeter: p = 0.45
Semiperimeter: s = 0.225

Angle ∠ A = α = 60° = 1.04771975512 rad
Angle ∠ B = β = 60° = 1.04771975512 rad
Angle ∠ C = γ = 60° = 1.04771975512 rad

Height: ha = 0.13299038106
Height: hb = 0.13299038106
Height: hc = 0.13299038106

Median: ma = 0.13299038106
Median: mb = 0.13299038106
Median: mc = 0.13299038106

Inradius: r = 0.04333012702
Circumradius: R = 0.08766025404

Vertex coordinates: A[0.15; 0] B[0; 0] C[0.075; 0.13299038106]
Centroid: CG[0.075; 0.04333012702]
Coordinates of the circumscribed circle: U[0.075; 0.04333012702]
Coordinates of the inscribed circle: I[0.075; 0.04333012702]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 120° = 1.04771975512 rad
∠ B' = β' = 120° = 1.04771975512 rad
∠ C' = γ' = 120° = 1.04771975512 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.