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

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

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

The radius of a circle is 14 cm and the area of a sector is 102.7 sq. cm. The central angle of the sector is

If the length and breadth of a rectangular field are increased, the area increases by 50%. If the increase in length was 20%, by what percentage was the breadth increased?

The length, breadth and height of a cuboid are increased by 10%, 20% and 50% respectively. What is the percentage increase in volume of the cuboid ?