plz help me thank u very much

Answer:
Px = √27 = 3√3
Step-by-step explanation:
∆Pxy is a right triangle.
Py = 6
xy = ½*6 = 3
Use pythagorean theorem to find Px.
Px = √(Py² - xy²)
Px = √(6² - 3²)
Px = √(36 - 9)
Px = √27 = 3√3