SOLUTION: I have a right triangle that has a side of 3 units (the side thats going up straight) and a hypotenuse of 5. I need to find the other side! Help! (:

Algebra ->  Triangles -> SOLUTION: I have a right triangle that has a side of 3 units (the side thats going up straight) and a hypotenuse of 5. I need to find the other side! Help! (:       Log On


   



Question 427143: I have a right triangle that has a side of 3 units (the side thats going up straight) and a hypotenuse of 5.
I need to find the other side! Help! (:

Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
This is a classic 3, 4, 5 triangle.
You will see this many times.
a^2+b^2=c^2
9+b^2=25
b^2=25-9
b^2=16
b=4