Question

The steps to construct a line perpendicular to $XY$ and passing through $P$ is given in random order :
$1.$ Move the set square along XY so the other short side touches Point P.
$2.$ Use the edge of the set square to draw a line through Point P.
$3.$ Draw a line $XY$ and mark point $P$.
$4.$ Place one short side of the set square on the line XY.
Which of the following will be the first step :

• A. $1$
• B. $2$
• C. $3$
• D. $4$

Answer 1

The correct option is C $3$

The steps to construct a line perpendicular to a given line, passing through a point are:

$1.$ Draw a line $XY$ and mark a point $P$ on it.

$2.$ Place one short side of the set square on the line $XY$.

$3.$ Move the set square along $XY$ so the other short side touches the point $P.$

$4.$ Use the edge of the set square to draw a line through point $P$ .

So $3.$ is the first step.

Option $C$ is correct.