If the radius of the circle is increased by 100%, then the area is increased by

If radius of a circle is increased by 10%, percentage increase in area is

If each of the dimensions of a rectangle is increased by 100%, then the area is increased by

If the difference between the circumference and radius of a circle is 37 cm, then the area 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 radii of circles A and B are in the ratio 1.5: 1, then the areas of the circles A and B will be in the ratio