The value of x is 3
First, we need to know that scale factor is a ratio that compares the measurements of one object or figure to the measurements of a similar object or figure.
It describes the proportional relationship between the corresponding lengths, areas, or volumes of geometric figures when one is an enlargement or reduction of the other.
The formula is represented as;
Scale factor = small shape/larger shape
Then, we have;
Scale factor = 5/10 = 1/2
Thus,
1/2 = x/6
cross multiply the values
x = 3