Triangle calculator VC
Right scalene triangle.
Sides: a = 4.24326406871 b = 2.82884271247 c = 5.09990195136Area: T = 6
Perimeter: p = 12.17700873255
Semiperimeter: s = 6.08550436627
Angle ∠ A = α = 56.3109932474° = 56°18'36″ = 0.98327937232 rad
Angle ∠ B = β = 33.6990067526° = 33°41'24″ = 0.58880026035 rad
Angle ∠ C = γ = 90° = 1.57107963268 rad
Height: ha = 2.82884271247
Height: hb = 4.24326406871
Height: hc = 2.35333936217
Median: ma = 3.53655339059
Median: mb = 4.4722135955
Median: mc = 2.55495097568
Inradius: r = 0.98660241491
Circumradius: R = 2.55495097568
Vertex coordinates: A[3; 5] B[-2; 6] C[1; 3]
Centroid: CG[0.66766666667; 4.66766666667]
Coordinates of the circumscribed circle: U[0; 0]
Coordinates of the inscribed circle: I[1.47990362237; 0.98660241491]
Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 123.6990067526° = 123°41'24″ = 0.98327937232 rad
∠ B' = β' = 146.3109932474° = 146°18'36″ = 0.58880026035 rad
∠ C' = γ' = 90° = 1.57107963268 rad
Calculate another triangle
How did we calculate this triangle?
1. We compute side a from coordinates using the Pythagorean theorem

2. We compute side b from coordinates using the Pythagorean theorem

3. We compute side c from coordinates using the Pythagorean theorem

Now we know the lengths of all three sides of the triangle and the triangle is uniquely determined. Next we calculate another its characteristics - same procedure as calculation of the triangle from the known three sides SSS.

4. The triangle circumference is the sum of the lengths of its three sides

5. Semiperimeter of the triangle

6. The triangle area using Heron's formula

7. Calculate the heights of the triangle from its area.

8. Calculation of the inner angles of the triangle using a Law of Cosines

9. Inradius

10. Circumradius
