# 9 24 29 triangle

### Obtuse scalene triangle.

Sides: a = 9   b = 24   c = 29

Area: T = 97.71438680024
Perimeter: p = 62
Semiperimeter: s = 31

Angle ∠ A = α = 16.3077179561° = 16°18'26″ = 0.28546139751 rad
Angle ∠ B = β = 48.48435348519° = 48°29'1″ = 0.84661973162 rad
Angle ∠ C = γ = 115.2099285587° = 115°12'33″ = 2.01107813624 rad

Height: ha = 21.71441928894
Height: hb = 8.14328223335
Height: hc = 6.73988874484

Median: ma = 26.23545192447
Median: mb = 17.80444938148
Median: mc = 10.87442815855

Inradius: r = 3.15220602581
Circumradius: R = 16.02663842995

Vertex coordinates: A[29; 0] B[0; 0] C[5.96655172414; 6.73988874484]
Centroid: CG[11.65551724138; 2.24662958161]
Coordinates of the circumscribed circle: U[14.5; -6.8266052572]
Coordinates of the inscribed circle: I[7; 3.15220602581]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 163.6932820439° = 163°41'34″ = 0.28546139751 rad
∠ B' = β' = 131.5166465148° = 131°30'59″ = 0.84661973162 rad
∠ C' = γ' = 64.79107144129° = 64°47'27″ = 2.01107813624 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.