Question : The area of a circle is 1386 cm². What is the radius of the circle?
[Use $\pi= \frac{22}{7}$]

Question : If the perimeter of the circle is 13.2 cm, then the radius of the circle is___________.
$\left(\right.$ Take $\left.\pi=\frac{22}{7}\right)$

Question : The circumference of a circle exceeds its diameter by 60 cm. The area of the circle is: (Take $\pi=\frac{22}{7}$ )

Question : A sector of a circle has a central angle of 45° and an arc length of 22 cm. Find the radius of the circle. ( Use $\pi=\frac{22}{7}$)

Question : In a circle of radius 42 cm, an arc subtends an angle of 60° at the centre. Find the length of the arc.
$\left(\right.$ Take $\left.\pi=\frac{22}{7}\right)$