determine the length of the sides and the measures of the angles for the congruent quadrilaterals B'C'
(On the picture it shows 50 degrees for B'C'(which is on the left hand side) and 9 for D'A' (On the right hand side)the picture shows that it is upside down.)
To determine the length of the sides and the measures of the angles for the congruent quadrilaterals B'C' and D'A', we will need additional information. The given angle measures of 50 degrees for B'C' and 9 degrees for D'A' are not sufficient to determine the lengths of the sides or the measures of the other angles.
To find the length of the sides and the measures of the remaining angles, you will need either the length of at least one side or the measures of at least two angles for each quadrilateral B'C' and D'A'. Without this information, it is impossible to determine the length of the sides or the measures of the other angles accurately.
If you have any other specific measurements or information about the quadrilaterals, please provide them, and I'll be happy to help you further.