Answer: place the 60° angle between different sides of the triangle.
Explanation:
Given the side lengths of 5cm and 3cm
With the angle being 60°.
In other, for Noah and Andre to draw another triangle different from what either of them has drawn already, All they have to do is to change where the 60° angle resides between each side of the triangle. This is possible since :
1. Both Noah and Andre have already seen each other's previous triangle
2. The angle can be between any of the sides as the position of the angle isn't specified