Anuj lays a wooden floor for a kite-shaped room. He places the strips such that they are perpendicular to the longest side of the room vertically. One strip is shown in the figure.

What is the approximate length (in $\mathrm{m}$) of the strip in the figure?

Vanita folds a rectangular sheet. The folded sheet is shown below.

What is the length of the sheet?

In a given rhombus $ABCD$, find the value of $x-y$.

A rhombus when divided by one diagonal gives two congruent triangles of perimeter 36 cm each. If both the diagonals divided it into 4 congruent triangles of perimeter 24 cm each, what is the side of the rhombus?

Shown below is the parallelogram $ABCD$ along with some measurements. The diagonals intersect at $O$. $OA=21 \mathrm{cm}$ , and $OD=25 \mathrm{cm}$, $OB=\left(2x+y\right) \mathrm{cm}$ and $OC=\left(2y+3\right) \mathrm{cm}$.

Mini wants to find the value of $x$. Which of these is the value of $x$?

Two friends, Sandhya and Kshama are playing a quiz game. 

Sandhya: "I have drawn a quadrilateral, guess its type."

Kshama: "Are all sides equal?"

Sandhya: "Yes"

Which of these questions should Kshama ask, if she needs to identify the type of quadrlateral with the next question?