N Nori New member Joined Apr 10, 2019 Messages 8 Oct 10, 2019 #1 I have to find y I tried solving for x first though, so: a*b=x*x 28*9 = x*x 252=x^2 x=15.87 or √(252) Now I'm stuck as to how to use this to solve for y

I have to find y I tried solving for x first though, so: a*b=x*x 28*9 = x*x 252=x^2 x=15.87 or √(252) Now I'm stuck as to how to use this to solve for y

L lev888 Senior Member Joined Jan 16, 2018 Messages 1,316 Oct 10, 2019 #2 Can you look up the relevant formulas?

Dr.Peterson Elite Member Joined Nov 12, 2017 Messages 7,394 Oct 10, 2019 #3 You appear to have the right formula, ab = x^2, but not the right definition for the variables in it. See the formula here: https://en.wikipedia.org/wiki/Tangent-secant_theorem

You appear to have the right formula, ab = x^2, but not the right definition for the variables in it. See the formula here: https://en.wikipedia.org/wiki/Tangent-secant_theorem