Construction - 4

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To construct angles of 90^o, 45^o and 135^o

(i) Draw a line AB and mark any point O on it.

(ii) With O as centre, draw an arc of any suitable radius which cuts AB at P.

(iii) With P as centre and the same radius, cut this arc at Q.

(iv) From Q, with the same radius, cut the arc again at R.

(v) Join OQ and OR.

(vi) Construct OC which bisects

(vii) Then

(viii) Construct OF which bisects

(ix) Then