Question Text
Question 1 :
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 2 :
The angle of sector with area equal to one fifth of total area of whole circle 
Question 3 :
If the radius of a circle is increased by 50% then the area of the circle is increased by ?
Question 4 :
If the sector of a circle of diameter $10$ cm subtends an angle of $144^{\circ}$ at the centre, then the length of the arc of the sector is
Question 5 :
On a square handkerchief of side 42 cm nine circular designs each of radius $7cm$ are made. Find the area of the remainig portion of the handkirchief
Question 6 :
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 7 :
A wire bent in the form a square incloses an area of 484 $\displaystyle m^{2}$ but if the same wire is bent in the form of a circle the area enclosed will be <br>
Question 8 :
The perimeter of a quadrant of a circle of radius $\dfrac{7}{2}$ cm is:<br/>
