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Question
Construct the 120° angle, using ruler and a pair of compass only.
Solution
Steps of construction:
To construct an angle of 120°.
- With centre O on the line OA, draw an arc to cut this line at C.
- With C as a centre, drawn the same size arc which cuts the first arc at point D.
- With D as a centre, draw one more arc of same size which cuts the first arc at E.
- Join OE and produce it upto point B. Then, ∠AOB = 120°.
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