Page 265 - Start Up Mathematics_6

2. Place the pointed end of a compass at A C
and draw an arc cutting the arms of the
angle at B and C as shown.

A B

3. Without changing the compass opening,
draw an arc with P as centre and cutting
ray PQ at X.
P X
Q

C
4. Set the opening of the compass so that its
pointed end is at B and the pencil end at
C respectively.
A B

Y
5. Without changing the compass opening,
place the pointed end at X and cut the
previously drawn arc at Y.
P X Q

R

6. Join P and Y to obtain the required angle. Y

Verify using a protractor that ∠P = ∠A.
P
X Q
Bisector of an Angle

Let there be a given angle say ∠A.
Steps of construction

1. With A as centre, draw an arc that cuts
both the arms of the angle at B and C
respectively. A

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