Step-by-step explanation:
The triangle inequality theorem states that the sum of any 2 sides of a triangle must be greater than the measure of the third side:
For this problem we have to try these inequalities. If all of them are true, then you can create a triangle with those measures:
You can create a triangle with the first set of measures.
You cannot create a triangle with the second set of measures.
You cannot create a triangle with the third set of measures.
You can create a triangle with the fourth set of measures.
Answers:
• 20 in, 5 in, 18 in
,
• 9 yd, 8 yd, 12 yd