Which statement is not true?

a. if two coplanar lines do not intersect, then the lines are parallel.

b. two lines lie in one plane and do not intersect if and only if the two lines are parallel.

c. if two lines are parallel, then they lie in one plane and do not intersect.

d. two lines lie in one plane if and only if the lines are parallel.

answer: answer

step-by-step explanation:

d) by the cross product property, ab^2 = bc multiplied by ad

step-by-step explanation:

we are given

in the given triangle abc

angle a is 90° and segment ad is perpendicular to segment bc

we can see that

triangle(abc) and triangle(abd) are similar because they have common side and same angle (90 degree)

so, triangles(abc) and abd are similar

since, they are similar

so, the ratio of their sides must be equal

we get

now, we can cross multiply

and we get

so, this could be step to prove it

step-by-step explanation: