CBSE Class 10 Maths Area and Circumference of a Circle

Q.

The circumference of a circle is 50π. So, the radius is



Q.

If C is the circumference of a circle of radius r, then the perimeter of the semicircle will be



Q.

If A is the area of the circle of radius r and B is the area of the circle with radius  , then



Circumference of a circle,Area of a circle problems based on the concept of perimeter and area of circles