Construction:-
( 1). Draw a line segment BC=5cm
( 2). From point C, construct an angle of 90o.
( 3). Take a point C as centre.
( 4). Cut ban arc of 6.8 cm. at point A.
( 5). Join the line AB. Then from point A cut an arc of 5 cm. at point D.
( 6). Join AD, BC and CD.
(7). join AC is a diagonal of 6.8 cm.
( 7). ABCD is a required rectangle.