# How to Find 5 Triangles with Integer Sides

Find five triangles with integers sides (without no commun divisors ) such that the median AD from angle A to side BC is m(a) = b + c - a where a, b , c are sides opposite to angles A, B, C respectively. The inner circle is tangent at point X to segment BD on side BC.

So find the 5 triangles of integers sides (with no commun divisor ) such that the length of median AD is m(a) = b + c - a.

For each of the five triangles, give separately the length of sides a, b, and c.

https://brainmass.com/math/triangles/find-triangles-integer-sides-493757

#### Solution Preview

Call the side lengths a, b, and c, and the median m. Note that the sentence "The inner circle is tangent at point X to segment BD on side BC" has no bearing on the problem, since X is not mentioned again.

We will use Apollonius' Theorem for the length of a median (http://en.wikipedia.org/wiki/Apollonius%27_theorem):

c^2 + b^2 = ...

#### Solution Summary

The expert determines how to find 5 triangles with integer sides.