If the distance between point P and line AB is 5cm, then A.AP＞5cm B.AP＜5cm C.AP≥5cm D.AP≤5cm

If the distance between point P and line AB is 5cm, then A.AP＞5cm B.AP＜5cm C.AP≥5cm D.AP≤5cm

Choose C
When PA is perpendicular to AB, take the equal sign, otherwise take the greater than sign

Given that the line AB is 5cm, the distance to point a is 3cm, and the distance to point B is 4cm, there are two points
Thank you very much,

Two points

It is known that the radius of circle O is equal to 10 cm, and P is the midpoint of line OA. When OA = what, point P is on the circle, when OA = 18 cm, point P is on the circle
I am more stupid, hope to have a picture

OA is a line segment from the center of the circle. P is at the midpoint of OA, that is, OA = 2op
If P is required to be on the circle, then OP is the radius, so the length of OA is twice the radius. When 10 * 2 = 20 (CM) OA = 18cm, Op = 9cm is less than the radius, so p is inside the circle at this time