perimeter and area of circle and semicircle formula explanation

Perimeter and Area of a circle

Area and Perimeter of circle

If the perimeter and the area of a circle are numerically equal, then the diameter of the circle is

If the perimeter and the area of a circle are numerically equal, then the radius of the circle is.

If the perimeter and the area of a circle are numerically equal, then find the radius of the circle

The area of a semicircle of radius 4t is

What is ratio of perimeter of circle and area of circle if radius is 7 cm.

The perimeter (in metres) of a semicircle is numerically equal to its area (in square metres). The length of its diameter is (take pi = (22)/(7) )