Triangle calculator SAS
Right isosceles triangle.
Sides: a = 48 b = 48 c = 67.88222509939Area: T = 1152
Perimeter: p = 163.8822250994
Semiperimeter: s = 81.9411125497
Angle ∠ A = α = 45° = 0.78553981634 rad
Angle ∠ B = β = 45° = 0.78553981634 rad
Angle ∠ C = γ = 90° = 1.57107963268 rad
Height: ha = 48
Height: hb = 48
Height: hc = 33.9411125497
Median: ma = 53.666563146
Median: mb = 53.666563146
Median: mc = 33.9411125497
Inradius: r = 14.0598874503
Circumradius: R = 33.9411125497
Vertex coordinates: A[67.88222509939; 0] B[0; 0] C[33.9411125497; 33.9411125497]
Centroid: CG[33.9411125497; 11.3143708499]
Coordinates of the circumscribed circle: U[33.9411125497; 0]
Coordinates of the inscribed circle: I[33.9411125497; 14.0598874503]
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?
1. Calculation of the third side c of the triangle using a Law of Cosines

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.

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

3. Semiperimeter of the triangle

4. The triangle area using Heron's formula

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

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

7. Inradius

8. Circumradius
