Question Text
Question 1 :
If the radius of a circle is tripled, the ares becomes.
Question 2 :
The radius of a wheel is $0.25 m$. How many rounds will it take to complete the distance of $11 km$?
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 :
The sum of the circumference and diameter of a circle is $116 cm$. Find its radius.
Question 6 :
If the circumference of a circle is $\displaystyle \frac {30}{\pi}$, then the diameter of the circle is:
Question 7 : <p>If the circumference of a circle is $8$ units and arc length of major sector is $5$ units then find the length of minor sector.</p>
Question 8 :
A circular disc of radius 10 cm is divided into sectors with angles $120^{\circ}$ and $150^{\circ}$ then the ratio of the area of two sectors is<br>
Question 9 :
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 10 :
The perimeter of a quadrant of a circle of radius $\dfrac{7}{2}$ cm is:<br/>
Question 11 :
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>
