The length of the diagonal of a square is ‘a’ cm. Which of the following represents the area of the square (in sq. cm.)?

The sides of a triangle are in the ratio 3 : 4 : 5. The measure of the largest angle of the triangle is

If the arcs of square length in two circles subtend angles of 60° and 75° at their centres, the ratio of their radii is 

The diagonal of a square is $${4\sqrt { 2}\ }$$ cm. The diagonal of another square whose area is double that of the first square is :

On a rainy day, 60 cm of rain is recorded in a region. What is the volume of water collected in an open and empty rectangular water tank that measures 12 m (length) ×10 m (width) and 50 cm (depth)?

The diameters of two cylinders are in the ratio 3:2 and their volumes are equal. The ratio of their heights is

If the height is doubled and the base is decreased by 20%, then the ratio of old area of the triangle and new area of the triangle is –

The radius of a right circular cylinder is four times of its height. If the height of the cylinder is 14 cm, then what is the volume of cylinder?