Find the expression that represents the length of the hypotenuse of a right triangle whose legs measure

Statement: if two distinct planes intersect, then their intersection is a line. which geometry term does the statement represent? defined term postulate theorem undefined term

How do you use the elimination method for this question? explain, because i really want to understand!

The weights of broilers (commercially raised chickens) are approximately normally distributed with mean 1387 grams and standard deviation 161 grams. what is the probability that a randomly selected broiler weighs more than 1,425 grams?