Is it possible to form a triangle with side lengths $6$6, $3$3, and $8$8?
Yes
No
Is it possible to form a triangle with side lengths $3$3, $5$5, and $9$9?
Is it possible to form a triangle with side lengths $9$9, $6$6, and $6$6?
Is it possible to form a triangle with side lengths $13$13, $7$7, and $6$6?