# Draw an angle of

(i)

Step 1:

Draw AOB = 80° and with any radius and A as center draw an arc.

Step 2:

With X as center and radius more than half of XY draw an arc and with Y as center and equal radius draw an arc and let the arcs intersect at C.

Step 3:

Join OC.

COB is equal to 40°.

Step 4:

With Y as center and radius more than half of PY draw an arc and with P as center and equal radius draw an arc and let the arcs intersect at D.

Step 5:

Join OD.

DOB is 60°.

Step 6:

With O as center and OX as radius extend the Arc XY to Arc XY’.

Step 7:

With Q as center and XQ as radius, draw an arc which cuts the Arc XY’ at R.

Step 8:

Join RO.

ROB is 120°.

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