# 22 25 29 triangle

### Acute scalene triangle.

Sides: a = 22   b = 25   c = 29

Area: T = 266.7133329251
Perimeter: p = 76
Semiperimeter: s = 38

Angle ∠ A = α = 47.37215510204° = 47°22'18″ = 0.82767895371 rad
Angle ∠ B = β = 56.73297103566° = 56°43'47″ = 0.99901202294 rad
Angle ∠ C = γ = 75.8998738623° = 75°53'55″ = 1.32546828871 rad

Height: ha = 24.24766662955
Height: hb = 21.33770663401
Height: hc = 18.39440227069

Median: ma = 24.73986337537
Median: mb = 22.5
Median: mc = 18.55439753153

Inradius: r = 7.01987718224
Circumradius: R = 14.95105088898

Vertex coordinates: A[29; 0] B[0; 0] C[12.06989655172; 18.39440227069]
Centroid: CG[13.69896551724; 6.13113409023]
Coordinates of the circumscribed circle: U[14.5; 3.64224876204]
Coordinates of the inscribed circle: I[13; 7.01987718224]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 132.628844898° = 132°37'42″ = 0.82767895371 rad
∠ B' = β' = 123.2770289643° = 123°16'13″ = 0.99901202294 rad
∠ C' = γ' = 104.1011261377° = 104°6'5″ = 1.32546828871 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 ### 6. Inradius ### 7. Circumradius ### 8. Calculation of medians #### Look also our friend's collection of math examples and problems:

See more informations about triangles or more information about solving triangles.