Question

draw a line segment cd. mark a point p on it and then draw a perpendicular at p using ruler and set square

Answer 1

To draw a perpendicular line at point P on line segment CD, use a ruler to measure the line CD, mark point P, then use a set square to form a 90-degree angle at P and draw the perpendicular line.

Step-by-step explanation:

Drawing a Perpendicular Line Using a Ruler and Set Square

To draw a line segment CD and construct a perpendicular at a point P on it using a ruler and set square, follow these step-by-step instructions:

1. Using a ruler, draw a straight line segment and label the ends as points C and D.
2. Mark a point P on the line segment CD where you want the perpendicular to intersect.
3. Place a set square with one of its right angles against the ruler so that it aligns perfectly with point P on the line segment.
4. Hold the set square firmly in place and draw a line starting from point P and moving away from the line segment CD. This new line should intersect with point P and form a 90-degree angle, creating a perpendicular line to CD at P.
5. To verify that the line drawn is indeed perpendicular, you may use a protractor to measure the angle formed at point P. It should be exactly 90 degrees.

By using a ruler and set squares accurately, you can create perfect perpendiculars every time, which is an essential skill in geometry.