# 14 14 16 triangle

### Acute isosceles triangle.

Sides: a = 14   b = 14   c = 16

Area: T = 91.91330023446
Perimeter: p = 44
Semiperimeter: s = 22

Angle ∠ A = α = 55.1550095421° = 55°9' = 0.96325507479 rad
Angle ∠ B = β = 55.1550095421° = 55°9' = 0.96325507479 rad
Angle ∠ C = γ = 69.76998091581° = 69°41'59″ = 1.21664911578 rad

Height: ha = 13.13304289064
Height: hb = 13.13304289064
Height: hc = 11.48991252931

Median: ma = 13.30441346957
Median: mb = 13.30441346957
Median: mc = 11.48991252931

Inradius: r = 4.17878637429
Circumradius: R = 8.53298051418

Vertex coordinates: A[16; 0] B[0; 0] C[8; 11.48991252931]
Centroid: CG[8; 3.8329708431]
Coordinates of the circumscribed circle: U[8; 2.95993201512]
Coordinates of the inscribed circle: I[8; 4.17878637429]

Exterior(or external, outer) angles of the triangle:
∠ A' = α' = 124.8549904579° = 124°51' = 0.96325507479 rad
∠ B' = β' = 124.8549904579° = 124°51' = 0.96325507479 rad
∠ C' = γ' = 110.3300190842° = 110°18'1″ = 1.21664911578 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.