Question

"Find the perimeter of the right triangle."
one of the legs are 12in, the other is 9in. I dont understand how im supposed to find the hypotenuse to get the perimeter. please help?

Answer 1

pythagorean theorem
(hypotenuse)^2 = (one side)^2 + (other side)^2
so hypotenuse^2 = 12^2 + 9^2
so hpyotenuse = √(144 + 81)
= √(225)
= 15

Answer 2

try to avoid doing all the work like that. let them get their hands dirty, then correct them if they make a mistake, or encourage them when they get it right :)

Answer 3

doesn't really work if they're afk...