Question

1 point
24. The line formed by intersection
of principal planes is called ........
O A. Projection line
O B. Origin line
C. Line of intersection
D. Reference line XY​

Answer 1

The line formed by intersection of principal planes is called D. Reference line XY​

Step-by-step explanation:

• The plane consists of several lines. But all of the lines are marked with respect to some reference.

• These lines for reference are called reference lines.

• They are formed by the intersection of principal planes e.g. horizontal "x" and vertical "y" planes.

• The coordinates of these lines are XY.

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