A sphere of diameter 6 cm is dropped in a right circular cylindrical vessel partly filled with water. The diameter of the cylindrical vessel is 12 cm. If the sphere is Just completely submerged in water, then the rise of water level in the cylindrical vessel is
1). 2 cm
2). 1 cm
3). 3 cm
4). 4 cm
1. If the diagonals of two squares are in the ratio of 2:5, their area will be in the ratio of
3. If the area of a circle is decreased by 36%,then the percentage decrease in its perimeter is
5. Find the area of the square, if it’s inscribed in a circle whose radius is 3 m.