# Triangle calculator SSS - result

Please enter the triangle sides:

### Acute isosceles triangle.

Sides: a = 10.2   b = 14.42   c = 10.2

Area: T = 52.02199876124
Perimeter: p = 34.82
Semiperimeter: s = 17.41

Angle ∠ A = α = 45.02197704599° = 45°1'11″ = 0.7865743223 rad
Angle ∠ B = β = 89.96604590802° = 89°57'38″ = 1.57701062076 rad
Angle ∠ C = γ = 45.02197704599° = 45°1'11″ = 0.7865743223 rad

Height: ha = 10.21999975711
Height: hb = 7.21549774774
Height: hc = 10.21999975711

Median: ma = 11.40107982177
Median: mb = 7.21549774774
Median: mc = 11.40107982177

Inradius: r = 2.98879372552
Circumradius: R = 7.21100017169

Vertex coordinates: A[10.2; 0] B[0; 0] C[0.00770392157; 10.21999975711]
Centroid: CG[3.40223464052; 3.43999991904]
Coordinates of the circumscribed circle: U[5.1; 5.09664816058]
Coordinates of the inscribed circle: I[2.99; 2.98879372552]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 134.988022954° = 134°58'49″ = 0.7865743223 rad
∠ B' = β' = 90.04395409198° = 90°2'22″ = 1.57701062076 rad
∠ C' = γ' = 134.988022954° = 134°58'49″ = 0.7865743223 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.