Question

Draw a triangle ABC in which∆A=120° and AB=AC=3cm . Draw the bisector of angle A.​

Answer 1

Answer:

1.Draw a line segment AB=3cm

2. Using protractor from B measure from 0

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and mark a point at 120

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3.From the point A using compass draw an arc of length 3cm

∴AB=AC=3cm

4.Join BC

5.Draw an arc at ∠A

6.Bisect the arc at ∠A and name the point of intersection of the arc as D

7.Join AD

thereforeAD is the angle bisector.

Hence ∠BAD=∠DAC=60

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