# 8 10 14 triangle

### Obtuse scalene triangle.

Sides: a = 8   b = 10   c = 14

Area: T = 39.19218358845
Perimeter: p = 32
Semiperimeter: s = 16

Angle ∠ A = α = 34.048773237° = 34°2'52″ = 0.59442450327 rad
Angle ∠ B = β = 44.41553085972° = 44°24'55″ = 0.77551933733 rad
Angle ∠ C = γ = 101.5376959033° = 101°32'13″ = 1.77221542476 rad

Height: ha = 9.79879589711
Height: hb = 7.83883671769
Height: hc = 5.59988336978

Median: ma = 11.48991252931
Median: mb = 10.2476950766
Median: mc = 5.74545626465

Inradius: r = 2.44994897428
Circumradius: R = 7.14443450831

Vertex coordinates: A[14; 0] B[0; 0] C[5.71442857143; 5.59988336978]
Centroid: CG[6.57114285714; 1.86662778993]
Coordinates of the circumscribed circle: U[7; -1.42988690166]
Coordinates of the inscribed circle: I[6; 2.44994897428]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 145.952226763° = 145°57'8″ = 0.59442450327 rad
∠ B' = β' = 135.5854691403° = 135°35'5″ = 0.77551933733 rad
∠ C' = γ' = 78.46330409672° = 78°27'47″ = 1.77221542476 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.