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प्रश्न
Construct with ruler and compass, angle of 90° measure.
उत्तर
The below given steps will be followed to construct an angle of 90°.
- Draw a line l and mark a point P on it. Now taking P as centre and with a convenient radius, draw an arc of a circle which intersects line l at Q.
- Taking Q as centre and with the same radius as before, draw an arc intersecting the previously drawn arc at R.
- Taking R as centre and with the same radius as before, draw an arc intersecting the arc at S (see figure).
- Taking R and S as centre, draw an arc of same radius to intersect each other at T.
- Join PT, which is the required ray making 90° with line l.
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संबंधित प्रश्न
Draw and name the following angle with the help of a protractor.
60°
Measure the angle given below and write the measure in the given box.
Draw and name the following angle with the help of a protractor.
90°
Draw and name the following angle with the help of a protractor.
30°
Draw and name the following angle with the help of a protractor.
165°
The instrument to measure an angle is a ______.
The instrument to draw a circle is ______.
Draw the images of the points A, B and C in the line m (figure). Name them as A’,B’ and C respectively and join them in pair. Measure AB, BC, CA, A’B’, B’C’ and C’A’. Is AB = A’B’, BC = B’C’ and CA = C’A’?
Draw the images P’, Q’ and R’ of the points P, Q and R respectively in the line n. Join P’Q’ and Q’ R’ to form an angle P’Q’R’. Measure ∠PQR and ∠P’Q’R’. Are the two angles equal?
Draw an angle ABC of measure 45°, using ruler and compasses. Now draw an angle DBA of measure 30o , using ruler and compasses as shown in figure. What is the measure of ∠DBC?
