Question Text
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 :
What is the circumference of a circle whose radius is 8 cm?
Question 3 :
If the radius of a circle be r cm then its area will be equal to-
Question 4 :
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 6 :
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 7 :
If the diameter of a circle is increased by 200% then its area is increased by<br>
Question 8 :
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 9 :
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 10 :
The area of a sector formed by two mutually perpendicular radii in $\odot \left( 0,5cm \right) $ is ............... ${cm}^{2}$.
Question 11 :
The circumference of a circular field is $308 m$. Find its radius in metres.
Question 12 :
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 13 :
The area of a sector is 1/18th of the area of the circle The sectorial angle is
Question 14 :
State true or false.Sector is the region between the chord and its corresponding arc.
Question 15 :
The area of a circle is $24.64$. $\displaystyle m^{2}$ What is the circumference of the circle ?
