Question Text
Question 1 :
If the radius of a circle be r cm then its area will be equal to-
Question 3 :
To find the cost of a frame of a picture, we need to find the perimeter of the picture.
Question 4 :
If the circumference and the area of a circle are numerically equal, then what is the numerical value of the diameter?
Question 5 :
If the area of the circle be $ \displaystyle 154 cm^{2},$ then its radius is equal to:
Question 6 :
Find the area of a circular park whose circumference is $22$m.
Question 7 :
The area of a semi circle is  circle is $\displaystyle \dfrac{\pi}{4}$ then the perimeter <br/>
Question 8 :
From a circle of radius 7 cm the largest possible square is cut and removed Find the area of the remaining portion (in cm$\displaystyle ^{2}$)
Question 9 :
The perimeter of circle is $\displaystyle \pi $ cm, then the area<br>
Question 10 :
The side of a square is $2 cm$ and semicircles are constructed on each side of the square, then the area of the whole figure is
Question 11 :
The perimeter of sheet of paper in the shape of a quadrant of a circle is 25 cm then area of the paper is <br>
Question 12 :
The cost of fencing a circular field at the rate of Rs 12 per meter is Rs 1320 The field is to be ploughed at Rs 2 per $\displaystyle m^{2}$ then of ploughing is $\displaystyle \left ( \pi =\frac{22}{7} \right )$<br/>