SOLUTION: Right angles triangle measures 10 , another side = y and longest side is 2 + y Using Pythagoras theorem complete equation (2 + y)^2 = 10^2 + y^2 How do I work out the value of Y

Algebra ->  Triangles -> SOLUTION: Right angles triangle measures 10 , another side = y and longest side is 2 + y Using Pythagoras theorem complete equation (2 + y)^2 = 10^2 + y^2 How do I work out the value of Y       Log On


   

Question 1037291: Right angles triangle measures 10 , another side = y and longest side is 2 + y
Using Pythagoras theorem complete equation (2 + y)^2 = 10^2 + y^2
How do I work out the value of Y ? I know the answer is 24
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
(2+y)(2+y)=10y^2+y^2
4+4y+y^2=10^2+y^2
4+4y=10^2
4y=100-4
y=96/4
y=24