# Triangle calculator SSS - result

Please enter the triangle sides:

### Acute scalene triangle.

Sides: a = 7.5   b = 5.3   c = 6.7

Area: T = 17.25553388477
Perimeter: p = 19.5
Semiperimeter: s = 9.75

Angle ∠ A = α = 76.37549258882° = 76°22'30″ = 1.33329939227 rad
Angle ∠ B = β = 43.37657282066° = 43°22'33″ = 0.75770492727 rad
Angle ∠ C = γ = 60.24993459052° = 60°14'58″ = 1.05215494582 rad

Height: ha = 4.60114236927
Height: hb = 6.51114486218
Height: hc = 5.15108474172

Median: ma = 4.73657681531
Median: mb = 6.59990529624
Median: mc = 5.56330477258

Inradius: r = 1.77697783434
Circumradius: R = 3.85985883817

Vertex coordinates: A[6.7; 0] B[0; 0] C[5.45114925373; 5.15108474172]
Centroid: CG[4.05504975124; 1.71769491391]
Coordinates of the circumscribed circle: U[3.35; 1.915473348]
Coordinates of the inscribed circle: I[4.45; 1.77697783434]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 103.6255074112° = 103°37'30″ = 1.33329939227 rad
∠ B' = β' = 136.6244271793° = 136°37'27″ = 0.75770492727 rad
∠ C' = γ' = 119.7510654095° = 119°45'2″ = 1.05215494582 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.