Triangle calculator ASA
Acute isosceles triangle.
Sides: a = 5.42220864676 b = 5.42220864676 c = 6.97105Area: T = 14.47661922317
Perimeter: p = 17.81546729351
Semiperimeter: s = 8.90773364676
Angle ∠ A = α = 50° = 0.8732664626 rad
Angle ∠ B = β = 50° = 0.8732664626 rad
Angle ∠ C = γ = 80° = 1.39662634016 rad
Height: ha = 5.34397127908
Height: hb = 5.34397127908
Height: hc = 4.15435592086
Median: ma = 5.62552724859
Median: mb = 5.62552724859
Median: mc = 4.15435592086
Inradius: r = 1.62551987656
Circumradius: R = 3.53990155991
Vertex coordinates: A[6.97105; 0] B[0; 0] C[3.485525; 4.15435592086]
Centroid: CG[3.485525; 1.38545197362]
Coordinates of the circumscribed circle: U[3.485525; 0.61545436095]
Coordinates of the inscribed circle: I[3.485525; 1.62551987656]
Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 130° = 0.8732664626 rad
∠ B' = β' = 130° = 0.8732664626 rad
∠ C' = γ' = 100° = 1.39662634016 rad
Calculate another triangle
How did we calculate this triangle?
1. Calculate the third unknown inner angle

2. By using the law of sines, we calculate unknown side a

3. By using the law of sines, we calculate last unknown side b

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
