Question

Exercise 19B
1. Draw a line segment PQ = 10 cm. Take a point A on PQ such that PA = 5.5 cm. Draw a ray
perpendicular to PQ at Aby
(i) using ruler and compasses. (ii) using ruler and set-squares. plz give explanation.​

Answer 1

Answer:

Step I: Draw a line PO and take a

point R on it.

Step ll: With R as centre and a convenient

radius construct an arc touching the

line PQ at two points A and B.

Step III : With A and B as centres and a

radius greater than RA construct two arcs

cutting each other at S.

Step IV: Join RS and extend it in both

directions to get a line perpendicular

to PO.

Thus, XY is the line required which is perpendicular to PQ and passes through R as shown in the above image.