# Triangle calculator SSS - result

Please enter the triangle sides:

### Acute isosceles triangle.

Sides: a = 424.26   b = 300   c = 300

Area: T = 450009.9999917
Perimeter: p = 1024.26
Semiperimeter: s = 512.13

Angle ∠ A = α = 89.99989010669° = 89°59'56″ = 1.57107771468 rad
Angle ∠ B = β = 45.00105494665° = 45°2″ = 0.78554077534 rad
Angle ∠ C = γ = 45.00105494665° = 45°2″ = 0.78554077534 rad

Height: ha = 212.1344068692
Height: hb = 3009.999999945
Height: hc = 3009.999999945

Median: ma = 212.1344068692
Median: mb = 335.4087623348
Median: mc = 335.4087623348

Inradius: r = 87.86883146696
Circumradius: R = 212.1330000039

Vertex coordinates: A[300; 0] B[0; 0] C[299.9944246; 3009.999999945]
Centroid: CG[199.9988082; 100.9999999816]
Coordinates of the circumscribed circle: U[150; 149.9977123028]
Coordinates of the inscribed circle: I[212.13; 87.86883146696]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 90.00110989331° = 90°4″ = 1.57107771468 rad
∠ B' = β' = 134.9999450533° = 134°59'58″ = 0.78554077534 rad
∠ C' = γ' = 134.9999450533° = 134°59'58″ = 0.78554077534 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.