Question

What is the measure of the side opposite θ in the triangle shown below.

Answer 1

see the attached figure to better understand the problem

we know that

in the Right Triangle ABC
opposite to the angle θ------> is the side BC
adjacent to the angle θ------> is the side AC
Hypotenuse is the long one-----> is the side AB

therefore

the answer is
the measure of the side opposite θ in the triangle is 5