If the semivertical angle of a cone is `45^@`. Then the rate of change of its volume is

If the semivertical angle of a cone is 45^@ then the rate of change of volume of the cone is

If the semivertical angle of a cone is 45^(@) then the rate of change of volume of the cone is

The semivertical angle of a cone is 45^(@) . The height of the cone is 30.05 cm. Find the approximate value of its volume

The semi vertical angle of a cone is 45^@ . The height of the cone is 30.05 cm. The approximately its volume is

The semivertical angle of a cone is 45^(@) and the height of the cone is 20.025cm . The approximate value of the curved surface area is ___sq.cm

The semivertical angle of a cone is 45^(@) . If the height of the cone is 20.025 cm, then the approximate value of its lateral surface area (in sq. cm ) is

The semi-vertical angle of a cone is 45^(@) . If the height of the cone is 20.025, then its approximate laternal surface area, is

The semi-vertical angle of a cone is 45^(@) . If the height of the cone is 20.025, then its approximate laternal surface area, is

Show that the semivertical angle of a cone of given slant height is tan^1 sqrt2 when its volume is maximum.