 Hello and welcome to the session. The given question says, construct a quadrilateral A,B,C,D with A,B is equal to 3 cm, A,D is 2.7 cm, B,D is 3.6 cm, angle B is 120 degrees, B,C is 4.2 cm. Construct another quadrilateral similar to the given quadrilateral A,B,C,D and that quadrilateral is A,B,C,D so that the diagonal is 4.8 cm, which is B,D,D. So let's start with the steps of construction and side by side we shall construct also. First step is draw a ray B,X and mark a point A on it such that A,B is equal to 3 cm. So let us draw a ray this B,X then on this ray we shall mark a point which is 3 cm from the point B and this point is A such that A,B is equal to 3 cm. Second step is draw angle Y,B,X is equal to 120 degrees. So now let us draw angle Y,B,X whose measure is equal to 120 degrees. Now we are given that B,C is equal to 4.2 cm therefore let us mark a point on this ray which is ray Y,B such that it is 4.2 cm. So this is a point C such that B,C is equal to 4.2 cm. Now the third step is with B,C and radius 3.6 cm mark an arc and the fourth step is with A,C radius 2.7 cm mark an arc such that it intersects the previous arc at the point D. So here with B,C and radius 3.6 cm with mark an arc and again with A,C and radius 2.7 cm we are drawn an arc which intersects the previous arc at the point D. Then we are joined the next step is join B,D,A,D,C. Now let us join the point D,C and thus A,B,C,D is the required correlator. Now the question says construct another correlator A,B,C,D similar to correlator A,B,C,D so that the diagonal is 4.8 cm which is B,D,D. So here on the ray B,Z let us mark a point D,D such that B,D,D is 4.8 cm. The next step is which is our sixth step produce B,D to D,D so that B,D,D is equal to 4.8 cm. Now the next step is from D dash draw a line D dash C dash parallel to the ray sorry parallel to the line DC. So here we have drawn a line D dash C dash which is parallel to the line DC. Now the next step is draw from the point D dash again D dash A dash parallel to D A from D dash. So here again we have drawn D dash A dash parallel to D A and thus A dash B C dash D dash is the required correlator which is similar to the correlator we have drawn A,B,C,D such that its diagonal is 4.8 cm. So this completes the session by and take care.