Isosceles triangle calculator (p)
Right isosceles triangle.
Sides: a = 79.37440622984 b = 79.37440622984 c = 112.2521875403Area: T = 3150.121088288
Perimeter: p = 271
Semiperimeter: s = 135.5
Angle ∠ A = α = 45° = 0.78553981634 rad
Angle ∠ B = β = 45° = 0.78553981634 rad
Angle ∠ C = γ = 90° = 1.57107963268 rad
Height: ha = 79.37440622984
Height: hb = 79.37440622984
Height: hc = 56.12659377016
Median: ma = 88.74328994748
Median: mb = 88.74328994748
Median: mc = 56.12659377016
Inradius: r = 23.24881245969
Circumradius: R = 56.12659377016
Vertex coordinates: A[112.2521875403; 0] B[0; 0] C[56.12659377016; 56.12659377016]
Centroid: CG[56.12659377016; 18.70986459005]
Coordinates of the circumscribed circle: U[56.12659377016; 0]
Coordinates of the inscribed circle: I[56.12659377016; 23.24881245969]
Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 135° = 0.78553981634 rad
∠ B' = β' = 135° = 0.78553981634 rad
∠ C' = γ' = 90° = 1.57107963268 rad
Calculate another triangle
How did we calculate this triangle?
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.
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
