Question

Auxiliary plane means
(1) the plane which is vertical
(2) the plane which is horizontal
(3) the plane that is at any angle to
the principal plane
(4) parallel plane​

Answer 1

3) is the answer .

Mark as the brainless answer.

Answer 2

Answer:

Auxillary plane means the plane which is vertical.

option 1 is right

Hope it helps you!