A solid sphere of diameter 7 cm is cut into two equal halves. What will be the increase (in cm.²) in the total surface area?

If Diagonal of rectangle is 41 cm and one side of Rectangle is 9 cm Then find out Ratio of perimeter and area of Rectangle? 

The ratio between the length and breadth of a rectangular park is 3: 2. If a man cycling along the boundary of the park at the speed of 12 Km./hr. completes one round in 8 min, then the area of the park in sq.m is – 

A bar graph showing the height of six mountain peaks. Study the bar graph and answer the following Questions.

How much percentage is more than Peak A From Peak F?

If tan π then the value of x is : 

If one root of the equation is two and a half times the others, then which of the following is True?

If , then what is the value of a?

Find the minimum value of θθ