# Triangle calculator SSS - result

Please enter the triangle sides:

### Acute scalene triangle.

Sides: a = 120   b = 89.07   c = 136.46

Area: T = 5263.0065585
Perimeter: p = 345.53
Semiperimeter: s = 172.765

Angle ∠ A = α = 59.9999171812° = 59°59'57″ = 1.04771830966 rad
Angle ∠ B = β = 40.0011075681° = 40°4″ = 0.6988150475 rad
Angle ∠ C = γ = 809.9997525071° = 79°59'59″ = 1.3966259082 rad

Height: ha = 87.71767597499
Height: hb = 118.177684035
Height: hc = 77.13662389711

Median: ma = 98.3743768099
Median: mb = 120.5299247799
Median: mc = 80.69332435214

Inradius: r = 30.4633378491
Circumradius: R = 69.28326104991

Vertex coordinates: A[136.46; 0] B[0; 0] C[91.92438850213; 77.13662389711]
Centroid: CG[76.12879616738; 25.7122079657]
Coordinates of the circumscribed circle: U[68.23; 12.03110937813]
Coordinates of the inscribed circle: I[83.695; 30.4633378491]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 120.0010828188° = 120°3″ = 1.04771830966 rad
∠ B' = β' = 139.9998924319° = 139°59'56″ = 0.6988150475 rad
∠ C' = γ' = 1000.000247493° = 100°1″ = 1.3966259082 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.