Given: In the cyclic quadrilateral ABCD, AB=5.8cm, ∠ABD=35o, AD=4.2cm and AB||CD.
Construction:
(i) Draw a rough diagram and mark the measurements. Draw a line segment AB=5.8cm.
(ii) From B, draw BX such that ∠ABX=35o.
(iii) With A as centre and radius 4.2cm, draw an arc intersecting BX at D.
(iv) Draw perpendicular bisectors of AB and AD intersecting each other at O.
(v) With O as centre, and OA(=)B=OD) as radius, draw a circumcircle of ΔABD.
(vi) Draw DY such that DY|| AB intersecting the circle at C.
Join BC.
(vii) Now, ABCD is the required cyclic quadrilateral.
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