# Triangle calculator SSS - result

Please enter the triangle sides:

### Acute scalene triangle.

Sides: a = 1.38   b = 1.28   c = 1.15

Area: T = 0.68769745151
Perimeter: p = 3.81
Semiperimeter: s = 1.905

Angle ∠ A = α = 68.96994618317° = 68°58'10″ = 1.20437441923 rad
Angle ∠ B = β = 59.96987287826° = 59°58'7″ = 1.04766517655 rad
Angle ∠ C = γ = 51.06218093858° = 51°3'43″ = 0.89111966958 rad

Height: ha = 0.99656152393
Height: hb = 1.07333976798
Height: hc = 1.19547382871

Median: ma = 1.00221726398
Median: mb = 1.09772009843
Median: mc = 1.22003228732

Inradius: r = 0.36106165434
Circumradius: R = 0.73992413967

Vertex coordinates: A[1.15; 0] B[0; 0] C[0.69106521739; 1.19547382871]
Centroid: CG[0.61435507246; 0.39882460957]
Coordinates of the circumscribed circle: U[0.575; 0.46545996583]
Coordinates of the inscribed circle: I[0.625; 0.36106165434]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 111.0310538168° = 111°1'50″ = 1.20437441923 rad
∠ B' = β' = 120.0311271217° = 120°1'53″ = 1.04766517655 rad
∠ C' = γ' = 128.9388190614° = 128°56'17″ = 0.89111966958 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.