Can you define an endpoint of a plane

A plane is a two dimensional flat surface.It has no thickness and  extends infinitely in two directions .A plane is named by three points in the plane that are not on the same line .For example of a wall in the room. By endpoint we mean two points that  does not extend past either of the points .A ray has one endpoint, and a line segment has two endpoints .Planes are flat' and continue on forever.They do not have any endpoints.

option a, c,d are correct.

step-by-step explanation:

from the given figure, it is given that z is equidistant from the sides of the triangle rst, then from triangle tzb and triangle szb, we have

tz=sz(given)

bz=zb(common)

therefore, by rhs rule,δtzb ≅δszb

by cpctc, sz≅tz

also, from δctz and δasz,

tz=sz(given)

∠tcz=∠saz(90°)

by rhs rule, δctz ≅ δasz, therefore by cpctc, ∠ctz≅∠asz

also,from δasz and δzsb,

zs=sz(common)

∠zbs=∠saz=90°

by rhs rule, δasz ≅δzsb, therefore, by cpctc, ∠asz≅∠zsb

hence, option a, c,d are correct.