Question

The question is in the photo. Complete the first one.

Answer 1

Let us begin by labelling the sides of the triangle

We can solve for x by applying Pythagoras theorem

`hypothenuse^2\text{ = opposite}^2\text{ + adjacent}^2`

Substituting the given values:

`\begin{gathered} x^2\text{ = 9}^2\text{ + 12}^2 \\ x^2\text{ = 225} \\ x\text{ = }√(225) \\ x\text{ = 15} \end{gathered}`

Answer:

x = 15