Question

we can bisect 90° with use of 120° and 60° Degree ​

Answer 1

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Steps of Construction :

1. Steps of Construction :Draw an angle of ∠AOB of 120°.
2. Steps of Construction :Draw an angle of ∠AOB of 120°.Draw an arc from point O. This arc will cut the ray OA at any point C and ray OB at any point D.
3. Steps of Construction :Draw an angle of ∠AOB of 120°.Draw an arc from point O. This arc will cut the ray OA at any point C and ray OB at any point D.Draw two arcs of the same radii from the points C and D as centres.
4. Steps of Construction :Draw an angle of ∠AOB of 120°.Draw an arc from point O. This arc will cut the ray OA at any point C and ray OB at any point D.Draw two arcs of the same radii from the points C and D as centres.Join the point O to the point M by a ray OM. ...
5. Steps of Construction :Draw an angle of ∠AOB of 120°.Draw an arc from point O. This arc will cut the ray OA at any point C and ray OB at any point D.Draw two arcs of the same radii from the points C and D as centres.Join the point O to the point M by a ray OM. ... m∠AOM = m∠BOM =