The areas of three adjacent faces of a cuboid are $x,y,z$. If the volume is $V$, then $V^2$ will be equal to

In the adjacent figure, find the area of the shaded region. (Use $\mathrm{\pi }=\frac{22}{7}$)

Find the area of the quadrilateral $ABCD$. ( Given, $\sqrt{3}=1.73$)

The base of a pyramid is a rectangle of sides $18m\times 26m$ and its slant height to the shorter side of the base is $24 m$. Find its volume.

A wire is lopped in the form of a circle of radius $28 cm$. It is bent again into a square form. What will be the length of the diagonal of the largest square possible thus?