Given that PA is perpendicular to the plane of rectangle ABCD, AB is equal to four, BC is equal to three, PA is equal to one, the distance from P to straight line BD is

Given that PA is perpendicular to the plane of rectangle ABCD, AB is equal to four, BC is equal to three, PA is equal to one, the distance from P to straight line BD is

Make AE vertical BD through a, connect PE, ad = 3, ab = 4, get AE = 12 / 5, Pythagorean theorem, pa2 + AE2 = Pe2, get PE = 13 / 5