Question

2. Draw two rays PQ and RS as shown in Fig. 19.14 (1) and (1). Using protractor, construct angle of 15° and 138° with one arm PQ and RS respectively. P S R () (1) Fig. 19.14​

Answer 1

Answer:

Construct a ray PQ as given in the question. Now place the protractor on PQ such that its centre coincides with the point P and the diameter coincides with PQ. Mark B against the mark of 15° on the protractor. Construct PB by removing the protractor.

Here ∠QPB is the required angle of 15°

(ii) Construct a ray RS as given in the question. Now place the protractor on RS such that its centre coincides with the point R and the diameter coincides with RS. Mark T against the mark of 138° on the protractor. Construct RJ by removing the protractor.

Here ∠SRT is the required angle of 138° .

Step-by-step explanation:

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