Mark M. answered • 03/09/17
Tutor
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Mathematics Teacher - NCLB Highly Qualified
The sum of any two sides must be greater than the other side.
1, 6, 6
2, 5, 6
3, 4, 6
David W.
Yes, "perimeter 13 inches" means (length of side 1) + (length of side 2) + (length of side 3) because the perimeter is the total distance around the triangle.
Now, two rules must be followed:
A. To be a triangle, the sum of the lengths of any two sides must be more than the length of the third side.
B. The perimeter of this triangle is 13.
Start with a side of length 1. Now, what two numbers add up to 12 but keep rule A true?
Then, start with a side of length 2 and do the same.
Soon, you sill have to stop because the numbers get too big for rule B to be true.
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03/16/17
Amber N.
03/14/17