# Triangle calculator SSS - result

Please enter the triangle sides:

### Acute scalene triangle.

Sides: a = 63   b = 86   c = 87

Area: T = 2537.337718689
Perimeter: p = 236
Semiperimeter: s = 118

Angle ∠ A = α = 42.70771248167° = 42°42'26″ = 0.74553799421 rad
Angle ∠ B = β = 67.79993830025° = 67°47'58″ = 1.18333224642 rad
Angle ∠ C = γ = 69.49334921808° = 69°29'37″ = 1.21328902473 rad

Height: ha = 80.55503868856
Height: hb = 59.00878415557
Height: hc = 58.33295905033

Median: ma = 80.56220878578
Median: mb = 62.610990337
Median: mc = 61.56550062942

Inradius: r = 21.50328575161
Circumradius: R = 46.44329799116

Vertex coordinates: A[87; 0] B[0; 0] C[23.80545977011; 58.33295905033]
Centroid: CG[36.93548659004; 19.44331968344]
Coordinates of the circumscribed circle: U[43.5; 16.27696153326]
Coordinates of the inscribed circle: I[32; 21.50328575161]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 137.2932875183° = 137°17'34″ = 0.74553799421 rad
∠ B' = β' = 112.2010616997° = 112°12'2″ = 1.18333224642 rad
∠ C' = γ' = 110.5076507819° = 110°30'23″ = 1.21328902473 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.