Question 1 :
The perimeter of a sector of a circle is $56$ cms and the area of the circle is $64\pi$ sq. cms  Find the area of sector.
Question 2 :
A roller of diameter 70 cm and length 2m is rolling on the ground What is the area covered by the roller in 50 revolutions?
Question 3 :
If the difference between the circumference and radius of a circle is 37 cm then its diameter is
Question 5 :
A wire of length $36$ cm is bent in the form of a semicircle. What is the radius of the semicircle?
Question 8 :
The diameter of a circle is divided into n equal parts.On each part a semicircle is constructed. as n becomes very large, the sum of the lengths of the arcs of the semicircles approaches a length:
Question 9 :
What is the circumference of a circle whose radius is 8 cm?
Question 10 :
A square is inscribed in a circle of radius $7\: cm$. Find area of the square.
Question 11 :
If the area of the circle be $ \displaystyle 154 cm^{2},$ then its radius is equal to:
Question 12 :
The radius of a circular wheel is $1.75\ m$. The number of revolutions that it will make in covering $11\ kms$ is:
Question 13 :
A sector of a circle with sectorial angle of$\displaystyle 36^{\circ} $ has an area of 15.4 sq cm The length of the arc of the sector is
Question 14 :
The radius of a wheel is $0.25 m$. How many rounds will it take to complete the distance of $11 km$?
Question 15 :
What is the minimum radius $(>1)$ of a circle whose circumference is an integer?
Question 16 :
If the radius and arc length of a sector are 17 cm and 27 cm respectively, then the perimeter is
Question 17 :
The circumference of a circular field is $308 m$. Find its radius in metres.
Question 18 :
If the area and arc length of the sector of a circle are 60 $cm^2$ and 20 cm respectively, then the diameter of the circle is
Question 20 :
In a circle with radius $5.7\ cm$, the perimeter of a sector is $27.2\ cm$. Find the area of this sector.
Question 21 :
Find the circumference of the circle with the following radius : 10 cm
Question 22 :
A horse is tied to a pole fixed at one corner of a $50 m \times 50 m$ square field of grass by means of a $20 m$ long rope. What is the area to the nearest whole number of that part of the field which the horse can graze?
Question 23 :
The area of a sector of a circle of radius 16 cm cut off by an arc which is 18.5 cm long is
Question 24 :
If the number of units in the circumference of a circle is same is same as the number of units in the area then the radius of the circle will be
Question 25 :
The number of circular pipes with an inside diameter of $1$ cm which will carry the same amount of water as a pipe with an inside diameter of $6$ cm is:
Question 26 :
If the circumference of a circle be 8.8 m then its radius is equal to -
Question 27 :
The area of a circle is $24.64$. $\displaystyle m^{2}$ What is the circumference of the circle ?
Question 28 :
Find the area of equilateral  triangle inscribed in a circle of unit radius.
Question 30 :
The diameter of a circle is $1$. Calculate the area of the circle.
Question 31 :
The diameter of a wheel of a cycle is 21 cm How far will it go in 28 complete revolutions?
Question 32 :
Given, $\displaystyle A = \frac{S}{360}\times \pi r^2$<br/>$A$ is the area of setor, $ S$ is the angle measure in degrees of the sector and $r$ is the radius of the circle. Find $r$ in terms of $A$ and $S$.
Question 33 :
A rope by which a cow is tethered is in reased from 16m to 23m. How much additional ground does it have to graze now?
Question 34 :
Say true or false:A sector is a region between the chord and its corresponding arc.
Question 35 :
If 'c' be the circumference and 'd' be the diameter then the value of$ \displaystyle \pi $ is equal to-<br>
Question 36 :
The region between an arc and two radii joining the centre to the end points of the arc is called
Question 37 :
Which of the following is not a sector of a circle?<br/>
Question 38 :
If the diameter of a circle is increased by 200% then its area is increased by<br>
Question 39 :
The minute hand of a clock is $\displaystyle \sqrt{21}$ cm long. The area described by the minute hand on the face of the clock between $7$ am and $7.05$ am is
Question 40 :
Size of a tile is $9$ inches by $9$ inches. The number of tiles needed to cover a floor of $12$ feet by $18$ feet is
