2 22 22 triangle

Acute isosceles triangle.

Sides: a = 2   b = 22   c = 22

Area: T = 21.97772609758
Perimeter: p = 46
Semiperimeter: s = 23

Angle ∠ A = α = 5.21105025301° = 5°12'38″ = 0.09109404248 rad
Angle ∠ B = β = 87.39547487349° = 87°23'41″ = 1.52553261144 rad
Angle ∠ C = γ = 87.39547487349° = 87°23'41″ = 1.52553261144 rad

Height: ha = 21.97772609758
Height: hb = 1.9987932816
Height: hc = 1.9987932816

Median: ma = 21.97772609758
Median: mb = 11.09105365064
Median: mc = 11.09105365064

Vertex coordinates: A[22; 0] B[0; 0] C[0.09109090909; 1.9987932816]
Centroid: CG[7.36436363636; 0.66659776053]
Coordinates of the circumscribed circle: U[11; 0.50105173307]
Coordinates of the inscribed circle: I[1; 0.95655330859]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 174.789949747° = 174°47'22″ = 0.09109404248 rad
∠ B' = β' = 92.60552512651° = 92°36'19″ = 1.52553261144 rad
∠ C' = γ' = 92.60552512651° = 92°36'19″ = 1.52553261144 rad

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    