Construction: Draw the ex-circle of a ?PQR in which PQ = 5 cm, ?P = 700 and ?Q = 60o, touching the sides PQ and other two sides when produced.
Steps of Construction:
1. Draw a line segment PO = 5 cm.
2. At Q draw an angle 60o with OR and at P construct an angle of 70o with PQ intersecting each other at R.
3. Draw the bisector of ∠BQP and ∠APQ intersecting each other at O.
4. Through O draw OO ⊥ PQ.
5. Draw a circle with centre O and radius as OO touching the side PQ and other side QR and PR when produced.
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