## Draw an angle of 120° with the help of a protractor. Name the angle and write its arms and vertex also.

Question

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## Answers ( )

Answer:Step-by-step explanation:Draw ∠BXA = 120° with the help of a protractor. Now, we use the following steps for required construction.

1.Taking X as Center and any radius draw an arc to Intersect the rays XA and XB, say at E and D, respectively.

2.Taking D and E as centers and with the radius more than 1/2 DE, draw arcs to intersect

each other, say at F.

3.Draw the ray XF.

Thus, ray XF is the required bisector of the angle B X A. On measuring each angle, we get

∠BXC = ∠AXC = 60°.

[∴ ∠BXC = ∠AXC = 1/2 ∠BXA = 1/2 x 120° = 60° ].