If a ray lays in a plane, how many points of the ray are also in the plane?
answer choices
a) all of the points
b) two points
c) three points
d) zero points

Option: a is the correct answer.

          a)  all of the points

We know that if a figure or a line lie in a plane then all the points that lie on that figure also lie in the same plane.

i.e. the points are said to be co-planar points.

Ray--

Ray is a line which originates at a point and it goes to infinity from the other end.

Hence, If a ray lays in a plane, then all the points that are on that ray also lie in the same plane.

x = 23.78

step-by-step explanation:

the correct option is 2.

step-by-step explanation:

according to the given information triangle abc is a right angle triangle with right angle at a. segment ab is 5 and segment ac is 7. point d is on segment bc and angles adb and adc are right angles.

it is given that triangles abd, cad, and cba are similar.

two triangles are similar if their corresponding sides are proportional.

in triangle cba, using pythagoras theorem

                      )

triangle abd and cba are similar,

                            (2)

triangle cad and cba are similar,

                      )

using (1), (2) and (3), we get

hence proved.

therefore option 2 is correct.