Question 2 :
If the difference between the circumference and radius of a circle is 37 cm then its diameter is
Question 3 :
Area of a circle with diameter 'm' radius 'n' and circumference 'p' is
Question 4 :
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 5 :
If an arc of a circle subtends an angle of<b></b>$ \displaystyle x^{\circ} $ at the centre then the length of the arc will be equal to - (Given radius of the circle=r)
Question 6 :
In a circle of radius 21 cm an arc subtends an angle of $\displaystyle 56^{\circ} $ at the centre of the circle. The length of the arc is
Question 7 :
The circumference of a circular field is $528\ m$. Then its area  is
Question 8 :
If the radius of a circle is $\dfrac{7}{\sqrt{\pi}}$, what is the area of the circle (in $cm^2$)?
Question 9 :
The diameter of a wheel of a cycle is 21 cm How far will it go in 28 complete revolutions?
Question 10 :
What is the area of the sector of a circle, whose radius is $6\ m$ when the angle at the centre is $42^{\circ}$?
Question 11 :
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 12 :
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 13 :
Cirumference of a circle is S cm, and its area is A sq cm. which one of the following relations is true?
Question 14 :
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 16 :
A rectangular sheet of acrylic is 50 cm by 25 cm . From it 60 circular buttons, each of diameter 2.8 cm have been cut out. The area of the remaining sheet is
Question 17 :
The region between an arc and two radii joining the centre to the end points of the arc is called
Question 18 :
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 19 :
If the radius of a circle increased by 20% then the corresponding increase in the area of circle is ................
Question 21 :
The area of a sector is 1/18th of the area of the circle The sectorial angle is
Question 22 :
Area of a sector having radius 12 cm and arc length 21 cm is
Question 23 :
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 24 :
$r$ is the radius and $l$  is the length of an arc. The area of a sector is ______.
Question 25 :
The radius of a circle whose area is equal to the sum of the areas of two circles where radii are 5 cm and 12 cm is
Question 26 :
A wire of length $36$ cm is bent in the form of a semicircle. What is the radius of the semicircle?
Question 27 :
The radius of a circular wheel is $1.75\ m$. The number of revolutions that it will make in covering $11\ kms$ is:
Question 28 :
The diameter of a circle is $1$. Calculate the area of the circle.
Question 30 :
If radius of a circle is increased to twice its original length, how much will the area of the circle increase ?
Question 31 :
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 32 :
The distance between the two parallel chords of length 8 cm and 6 cm in a circle of diameter 10 cm if the chords lic on the same side of the centre is
Question 33 :
A square is inscribed in a circle of radius $7\: cm$. Find area of the square.
Question 35 :
If the area of the circle be $ \displaystyle 154 cm^{2},$ then its radius is equal to:
Question 36 :
The ratio of areas of square and circle is givenn : 1 where n is a natural number. If the ratio of side of square and radius of circle is k :1, where k is a natural number, then n will be multiple of
Question 37 :
The circumference of a circular field is $308 m$. Find its radius in metres.
Question 38 :
If the radius of a circle is tripled, the ares becomes.
Question 39 :
The sum of the circumference and diameter of a circle is $116 cm$. Find its radius.
Question 40 :
State true or false:<br/>Sector is the region between the chord and its corresponding arc.
Question 42 :
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 43 :
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
Question 44 :
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 45 :
Choose the correct answer from the alternative given.<br/>A can go round a circular path $8$ times in $40$ minutes. If the diameter of the circle is increased to $10$ times the original diameter, the time required by A to go round the new path once travelling at the same speed as before is:
Question 46 :
Which of the following is not a sector of a circle?<br/>
Question 48 :
What is the circumference of a circle whose radius is 8 cm?
Question 49 :
Lengthof an arc of a circle with radius $r$ and central angle $\theta$is(angle in radians):
Question 50 :
If the area of a circle is $346.5 \displaystyle cm^{2}$. Its circumference is
