Question 1 :
Find the area of equilateral  triangle inscribed in a circle of unit radius.
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 4 :
If the radius of a circle increased by 20% then the corresponding increase in the area of circle is ................
Question 5 :
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 6 :
Cirumference of a circle is S cm, and its area is A sq cm. which one of the following relations is true?
Question 7 :
Say true or false:A sector is a region between the chord and its corresponding arc.
Question 8 :
If the area of the circle be $ \displaystyle 154 cm^{2},$ then its radius is equal to:
Question 9 :
The area of two circles are in the ratio $25 : 36$. Then the ratio of their circumference is _________.
Question 11 :
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 12 :
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 13 :
Circular dome is a 3D example of which kind of sector of the circle?
Question 14 :
If the radius of a circle is $\dfrac{7}{\sqrt{\pi}}$, what is the area of the circle (in $cm^2$)?
Question 15 :
The area of a circle is $24.64$. $\displaystyle m^{2}$ What is the circumference of the circle ?
Question 16 :
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 17 :
A cord in the form of square encloses the area 'S'$ \displaystyle cm^{2} $ If the same cord is bent into the form of a circle then the area of the circle is
Question 18 :
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 19 :
The angle of sector with area equal to one fifth of total area of whole circle 
Question 20 :
A cow is tied to a pole, fixed to the midpoint of a side of a square field of dimensions $40\ m\times 40\ m$, by means of $14\ m$ long rope. Find the area that the cow can graze.
Question 21 :
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 22 :
The circumference of a circle exceeds its diameter by $180$ cm. Then  the area of the circle
Question 23 :
Given radius = $11 $ cm, area of the sector is $230 $ $cm^2$. Find the length of the arc $SR$.<br/>
Question 24 :
The circumference of a circular field is $528\ m$. Then its radius is
Question 26 :
If a sector of a circle of diameter 21 cm subtends an angle of $120^{\circ}$ at the centre, then what is its area ? 
Question 27 :
A running track is the ring formed by two concentric circles. It is $10\ m$ wide. The circumferences of the two circle differ by about.
Question 29 :
If the difference between the circumference and diameter of a circle is $30\ cm$, then the radius of the circle must be:
Question 30 :
The minute hand of a clock is 14 cm long If it moves between 8:00 AM and 8:45 AM What is the area covered by it on the face of the clock?
Question 31 :
The ratio of the slant height of two right cones of equal base is 3 : 2 then the ratio of their volumes is <br>
Question 32 :
A sphere with diameter $50$ cm intersects a plane $14$ cm from the center of the sphere. What is the number of square centimeters in the area of the circle formed?
Question 33 :
If a bicycle wheel makes $5000$ revolution in moving $11$ km, then diameter of wheel is
Question 34 :
The area of a sector of a circle of angle $\displaystyle 60^{\circ}$ is $\displaystyle \frac{66}{7}cm^{2}$ then the area of the corresponding major sector is<br>
Question 35 :
The perimeter of a quadrant of a circle of radius $\dfrac{7}{2}$ cm is:<br/>
