Draw an Obtuse Angle, Bisect It. Measure Each of the Angles So Obtained. - Mathematics

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Draw an obtuse angle, Bisect it. Measure each of the angles so obtained.

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Steps of construction:
1. Draw angle ABC `of^ 120°`
2. With center B and any radius, draw an arc which intersects AB at P and BC at Q
3. With center P and Q and radius more than `1/2`PQ draw two arcs, with intersect each other
at R.
4. Join BR

∴ `∠`ABR = `∠`RBC= 60°



Concept: Basic Constructions
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RD Sharma Mathematics for Class 9
Chapter 16 Constructions
Exercise 16.2 | Q 2 | Page 9

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