Question

find the value of the missing side round to the nearest tenth

Answer 1

Using Pythagoras theorem

$y^2\text{ = (3}\sqrt[]{3)^2}+7^2$$y\text{ = }\sqrt[]{27\text{ + 49}}$$\begin{gathered} y\text{ =}\sqrt[]{76} \\ y\text{ =8.718} \end{gathered}$