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Q4.    Construct the following angles and verify by measuring them by a protractor:

                    (iii)    135o

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The steps of construction to be followed:

construction abcd

Step 1: Draw a ray DY.

Step 2: Draw an arc ACD with O as a center.

Step 3: Now, with A as a centre, draw two arcs B and C on the arc ACD.

Step 4: Taking B and C as centres, arcs are made to intersect at E and the angle formed is \angle EOY = 90^{\circ}.

Step 5: Take F and D as centres, draw arcs to intersect at point X or the bisector of angle EOD is made.

Step 6: Join OX and the  \angle XOY = 135^{\circ} is made.

Hence, the angle required \angle XOY is 135^{\circ}.

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Divya Prakash Singh

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