Which side of the triangle in the diagram is the hypotenuse?

$X$X

$Y$Y

$Z$Z

We want to determine if the triple $\left(9,12,15\right)$(9,12,15) is a Pythagorean triple.

Use trigonometric ratios and Pythagorasâ€™ theorem in two and three dimensions

Apply geometric reasoning in solving problems

Apply right-angled triangles in solving measurement problems