Geometry
posted by Anonymous on .
If the perimeter of a triangle is 12, which of the following could be the length of one side of the triangle?
a. 8
b. 7
c. 6
d. 5
Would the correct answer be d. 5?
And how do you go about answering this type of question? I just guessed; I figured it was the smallest number.. and 8 was too long to be a side.

You did it correctly. you look at the other two sides, they have to be greater than the side given. If a is a side, then b+c must be greater than a.