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in Plane Geometry and Line and Angle by (34.8k points)
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Construct an angle of 120°. Bisect the angle and verify by measuring the two angles.

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Steps of Construction:

1. Draw a line segment of any measure named as PQ.

2. With P as centre draw an angle of 120° with the help of protractor.

3. With P as centre again draw an arc which cuts line segments PQ and PS at M and N.

4. With M and N as centres and with radius little more than half the arc, draw arcs cutting each other at T. Join PT which is the required bisector of ∠SPQ = 120°.

∴ ∠TPQ = ∠TPS = 60° (each)

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