Not sure what a convex shape is? We explain it for you below.
“A convex polygon is a simple polygon (not self-intersecting) in which no line segment between two points on the boundary ever goes outside the polygon. Equivalently, it is a simple polygon whose interior is a convex set.”
Slightly less technical definition:
“Curved outwards. Example: A polygon (which is straight-sided) is convex when there are NO “dents” or indentations in it (no internal angle is greater than 180°)”
But if you are not a mathematician:
To make it much simpler we have drawn some examples below to show you what we can cut and what we cannot cut: