A triangle has a perimeter 13. The two shorter sides have integer lengths equal to x and x + 1. Which of the following could be the length of the other side?
The measure of the third side of a triangle must lie between the sum and the difference of the other two sides. Using this fact along with the answer choices, we can eliminate the wrong answers.
Option A cannot be correct because 4 would not be the longest side.(sides 4, 5, and 4)
Option B could be correct because the other two sides would be 3 and 4.
Option C cannot be correct because this third side would be greater than the sum of the other two sides.
1. The author of 'A Foreign Policy For India' is L.K Advani. 2. 'Wings of Fire' is a book written by A.P.J Abdul kalaam. 3. 'Open' is an Autobiography of Andre Agassi.
Two trains of equal length, running with the speeds of 60 and 40 kmph, take 50 seconds to cross each other while they are running in the same direction. What time will they take to cross each other if they are running in opposite directions ?