If the radius of a aphere is increased by 10%,then its volume is increased by
If tan(A+B)=√3 and tan A=1,then tan(A-B) is equal to
Four equal sized maximum circular plates are cut off from a square paper sheet of area 784sq.cmThe circumference of each plate is
If a star figure is formed by elongating the sides of a regular pentagon,then the measure of each angle at the angular points of the star figure is
AD is a diameter of a circle and AB is a chord.If AD=34cm,AB=30cm,distance of AB from the center of the circle is
The area of the largest triangle that can be inscribed in a semi-circle of radius r is²