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12 questions
Can these side lengths make a triangle? 7, 5, 4
Hint: Add the two shortest, are they greater than the biggest side?
True, sides make a triangle
5+4 > 7
False, sides DON'T make a triangle
Can these side lengths make a triangle? 5, 2, 4
Hint: Add the two shortest, are they greater than the biggest side?
True, sides make a triangle
2+4 > 5
False, sides DON'T make a triangle
2+4 is not greater than 5
Can these side lengths make a triangle? 9, 6, 5
Hint: Add the two shortest, are they greater than the biggest side?
True, sides make a triangle
5 + 6 > 9
False, sides DON'T make a triangle
5 + 6 is not greater than 9
Can these side lengths make a triangle? 4, 7, 8
Hint: Add the two shortest, are they greater than the biggest side?
True, sides make a triangle
4 + 7 > 8
False, sides DON'T make a triangle
4 + 7 is not greater than 8
Can these side lengths make a triangle? 3, 10, 8
Hint: Add the two shortest, are they greater than the biggest side?
True, sides make a triangle
3 + 8 > 10
False, sides DON'T make a triangle
3 + 8 is not greater than 10
Can these side lengths make a triangle? 3, 6, 2
Hint: Add the two shortest, are they greater than the biggest side?
True, sides make a triangle
3 + 2 > 16
False, sides DON'T make a triangle
3 + 2 is not greater than 6
Will these side lengths form a triangle?
yes
no
Will these line segments form a triangle?
yes
no
Does a triangle with these side lengths exist?
15, 12, 9
Yes
No
I don't know.
Cannot be determined
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