Construct a quadrilateral ABCD in which BC =7.5 cm, AC=AD= 6 cm, CD=5 cm, BD=10 cm.
(i) Draw a line segment CD=5cm.
(ii) Which centre C and D and radius 6 cm, draw line segments intersecting each other A .
(iii) JOin AC and AD.
(iv) Again with centre C and radius 7.5 cm and with centre D and radius 10 cm, draw arcs intersecting each other at B.
(v) Join CB,CA,DA,DB and AB.
Then ABCD is the required quadrilateral.