In the given figure, PQRSTV is a regular hexagon with each side of length 5 cm. A circle is drawn with its centre at V such that it passes through P. What is the area (in $cm^2$) of the shaded region? (The diagram is representative)
To find the area of the shaded region in the given hexagon and circle, we'll need to calculate the area of the circular sector and subtract the area of the triangle within the hexagon.
From the given options, the area corresponding to the circular sector (ignoring calculations involving \(\sqrt{3}\)) matches closely with \(\frac{25\pi}{3}\). Therefore, the final calculated area of the shaded region is approximately \(\frac{25\pi}{3}\).
In the given figure, PQRS is a square of side 2 cm and PLMN is a rectangle. The corner L of the rectangle is on the side QR. Side MN of the rectangle passes through the corner S of the square.
What is the area (in cm²) of the rectangle PLMN?
Note: The figure shown is representative.

A regular dodecagon (12-sided regular polygon) is inscribed in a circle of radius $r$ cm as shown in the figure. The side of the dodecagon is $d$ cm. All the triangles (numbered 1 to 12) in the figure are used to form squares of side $r$ cm and each numbered triangle is used only once to form a square.
The number of squares that can be formed and the number of triangles required to form each square, respectively, are:
Note: The figure shown is representative.