Circle Questions

A circle has a radius of $7.18\text{cm}$. What is the circumference of the circle? (Use $\pi =3.14$)

The circumference of a circle exceeds its diameter by 30 cm. The area (in cm
2
) of the circle is: (Take π=
7
22
​
)

Chords AB and CD of a circle, when produced, meet at a point P outside the circle. If AB=6cm, CD=3cm and PD=5cm, then PB is equal to:

The circumference of a circle is 88cm, find its diameter?

If the radius of a circle is increased by 12% then its area increases by:

A circular lawn has an area of $154\text{sq. meter}$. A path of $7\text{meter}$ width surrounds the lawn. What is the area of the lawn including the path (in $\text{sq. meter}$)?

The area of a circle is $2464\text{ square meters}$. What will be its circumference?

A circular copper wire of radius $7\text{cm}$ is bent to form a rectangle. If the breadth and length of the rectangle are in the ratio of $4:7$ respectively, what is the breadth of the rectangle? (in $\text{cm}$)

A horse is tied to a post by a rope. If the horse moves along a circular path, always keeping the rope tight, and describes $88\text{m}$ when it traces $72^{\circ }$ at the centre, then the length of the rope is

A circular lawn has an area of $154\text{sq meter}$. A path of $7\text{meter}$ width surrounds the lawn. What is the area of the lawn including the path? (in $\text{sq meter}$)

$AB$ and $CD$ are two parallel chords of a circle such that $AB=10\text{cm}$ and $CD=24\text{cm}$. If the chords are on the opposite sides of the centre and the distance between them is $17\text{cm}$, then the radius of the circle is: