Question 139
A triangle (with non-zero area) is constructed with the lengths of the sides chosen from the set
$$
\{2, 3, 5, 8, 13, 21, 34, 55, 89, 144\}
$$
Show that this triangle must be isosceles. (A triangle is isosceles if it has at least two sides the same length.)
$$
\{2, 3, 5, 8, 13, 21, 34, 55, 89, 144\}
$$
Show that this triangle must be isosceles. (A triangle is isosceles if it has at least two sides the same length.)