Understanding Q...

$$PQRS$$ is a parallelogram. Find $$y$$.

 If ABCD is parallelogram. E is mid-point of AB and CE bisects $$ \angle BCD$$, then $$\angle DEC$$ is _____.

The following figure GUNS is a parallelogram. Find $$x$$ and $$y.$$ (Lengths are in cm)

The following figure RUNS is a  parallelogram. Find x and y. (Lengths are in cm)

The adjacent angles of a parallelogram are as 2 : 3. Find the measures of all the angles

Two adjacent angles of a parallelogram are in the ratio $$4:5$$, Find all the angles of the parallelogram

In the given figure $$AE = BC$$ and $$AE || BC$$ and the three sides $$AB, CD$$ and $$ED$$ are equal in length If $$\displaystyle \angle A=102^{\circ}$$ find the measure of $$\displaystyle \angle BCD$$

In a parallelogram PQRS, X is the mid point of PS and Y is the mid point of QR, then XY divides QS in the ratio of

Which of the following is/are an example(s) of simple closed curve?