# 1 14 14 triangle

### Acute isosceles triangle.

Sides: a = 1   b = 14   c = 14

Area: T = 6.99655342898
Perimeter: p = 29
Semiperimeter: s = 14.5

Angle ∠ A = α = 4.09334261954° = 4°5'36″ = 0.07114437648 rad
Angle ∠ B = β = 87.95332869023° = 87°57'12″ = 1.53550744444 rad
Angle ∠ C = γ = 87.95332869023° = 87°57'12″ = 1.53550744444 rad

Height: ha = 13.99110685796
Height: hb = 0.99993620414
Height: hc = 0.99993620414

Median: ma = 13.99110685796
Median: mb = 7.03656236397
Median: mc = 7.03656236397

Inradius: r = 0.48224506407
Circumradius: R = 7.00444685609

Vertex coordinates: A[14; 0] B[0; 0] C[0.03657142857; 0.99993620414]
Centroid: CG[4.67985714286; 0.33331206805]
Coordinates of the circumscribed circle: U[7; 0.25501595915]
Coordinates of the inscribed circle: I[0.5; 0.48224506407]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 175.9076573805° = 175°54'24″ = 0.07114437648 rad
∠ B' = β' = 92.04767130977° = 92°2'48″ = 1.53550744444 rad
∠ C' = γ' = 92.04767130977° = 92°2'48″ = 1.53550744444 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.