VERY SHORT ANSWER TYPE QUESTIONS (VSAQs)

An arc subtends an angle of $90°$ at the centre of the circle of the radius $14 \mathrm{cm}$. Write the area of the minor sector thus formed in terms of $\mathrm{\pi }$.

Find the area of the largest triangle that can be inscribed in a semicircle of the radius $\mathrm{r}$ units.

Find the area of a sector of circle of radius $21 \mathrm{cm}$ and central angle $120°$.

What is the area of a largest square inscribed in a circle of diameter $p \mathrm{cm}$?

Is it true to say that area of segment of a circle is less than the area of its corresponding sector?

If the numerical value of the area of a circle is equal to the numerical value of its circumference, find its radius.

How many revolutions a circular wheel of radius $r$ meters makes in covering a distance of $s$ meters?

Find the ratio of the area of the circle circumscribing a square to the area of the circle inscribed in the square.