Question

What is the value of x in the circle on the right?

Answer 1

Determine the value of x by using the pythagoras theorem.

$\begin{gathered} (9+x)^2=(x)^2+(14)^2 \\ 81+x^2+18x=x^2+196 \\ 18x=196-81 \\ x=\frac{115}{18} \\ =6.3888 \\ \approx6.4 \end{gathered}$

So value of x is 6.4.