# 16 26 29 triangle

### Acute scalene triangle.

Sides: a = 16   b = 26   c = 29

Area: T = 206.7522116071
Perimeter: p = 71
Semiperimeter: s = 35.5

Angle ∠ A = α = 33.25882815588° = 33°15'30″ = 0.58804665168 rad
Angle ∠ B = β = 63.02110067637° = 63°1'16″ = 1.10999240659 rad
Angle ∠ C = γ = 83.72107116774° = 83°43'15″ = 1.46112020709 rad

Height: ha = 25.84440145089
Height: hb = 15.90440089286
Height: hc = 14.25987666256

Median: ma = 26.35333679062
Median: mb = 19.48107597388
Median: mc = 15.99221855917

Inradius: r = 5.82440032696
Circumradius: R = 14.58875169614

Vertex coordinates: A[29; 0] B[0; 0] C[7.25986206897; 14.25987666256]
Centroid: CG[12.08662068966; 4.75329222085]
Coordinates of the circumscribed circle: U[14.5; 1.59655096677]
Coordinates of the inscribed circle: I[9.5; 5.82440032696]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 146.7421718441° = 146°44'30″ = 0.58804665168 rad
∠ B' = β' = 116.9798993236° = 116°58'44″ = 1.10999240659 rad
∠ C' = γ' = 96.27992883226° = 96°16'45″ = 1.46112020709 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.