Answer:
9
Step-by-step explanation:
The similarity ratio is 4/x = z/9 = 2/6 = 3/w = y/15
2/6 = 3/w cross multiply expressions 2w = 18 and w = 9
The yellow polygon is the scaled version of the red one (scaled by 3×), so the variable w = 9
33.3%
19.4%
Now
ATQ to the equation x should be greater than 1 .Because if it becomes 1 then the denominator will be 0 which is impossible.
Hence x>1
Thus