In the given figure, $\mathrm{TURN}$ is a parallelogram. Find the measures of $x$ and $y$ (lengths are in $\mathrm{cm}$).

In the given figure, $\mathrm{BURN}$ is a parallelogram. Find the measures of $x$ and $y$ (lengths are in $\mathrm{cm}$).

In the given figure, both $\mathrm{ABCD}$ and $\mathrm{PQRS}$ are parallelograms. Find the value of $x$.

In the given figure, $\mathrm{ABCD},$ is a parallelogram and diagonals intersect at $\mathrm{O}$. If $\angle \mathrm{CAD}=k°$ then find $k$.

In the given figure, $\mathrm{ABCD}$ is a parallelogram and diagonals intersect at $\mathrm{O}$. Find $\angle \mathrm{ACD}$.

In the given figure, $\mathrm{ABCD}$ is a parallelogram and diagonals intersect at $\mathrm{O}$. Find $\angle \mathrm{ADC}$.

In the given figure, $\mathrm{ABCD}$ is a parallelogram. Perpendiculars $\mathrm{DN}$ and $\mathrm{BP}$ are drawn on diagonal $\mathrm{AC}$. Prove that $\mathrm{\Delta DCN}\cong \mathrm{\Delta BAP}$.

In the given figure, $ABCD$ is a parallelogram. Perpendiculars $DN$ and $BP$ are drawn on diagonal $AC$. Prove that $AN=CP$

In the given figure, $ABC$ is a triangle. Through $A, B$ and $C$ lines are drawn parallel to $BC$, $CA$ and $AB$ respectively, which forms a $\Delta PQR$.

Show that $2(\mathrm{AB}+\mathrm{BC}+\mathrm{CA})=\mathrm{PQ}+\mathrm{QR}+\mathrm{RP}$

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