# Triangle calculator SSS - result

Please enter the triangle sides:

### Acute isosceles triangle.

Sides: a = 7.07   b = 7.07   c = 4.47

Area: T = 14.9911115679
Perimeter: p = 18.61
Semiperimeter: s = 9.305

Angle ∠ A = α = 71.57112896572° = 71°34'17″ = 1.24991546544 rad
Angle ∠ B = β = 71.57112896572° = 71°34'17″ = 1.24991546544 rad
Angle ∠ C = γ = 36.85774206856° = 36°51'27″ = 0.64332833448 rad

Height: ha = 4.2410768226
Height: hb = 4.2410768226
Height: hc = 6.70774343083

Median: ma = 4.74220117039
Median: mb = 4.74220117039
Median: mc = 6.70774343083

Inradius: r = 1.61110817495
Circumradius: R = 3.72660819639

Vertex coordinates: A[4.47; 0] B[0; 0] C[2.235; 6.70774343083]
Centroid: CG[2.235; 2.23658114361]
Coordinates of the circumscribed circle: U[2.235; 2.98113523444]
Coordinates of the inscribed circle: I[2.235; 1.61110817495]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 108.4298710343° = 108°25'43″ = 1.24991546544 rad
∠ B' = β' = 108.4298710343° = 108°25'43″ = 1.24991546544 rad
∠ C' = γ' = 143.1432579314° = 143°8'33″ = 0.64332833448 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.