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^(@) . The height of the cone is 20.025 cm. The approximate lateral surface area is

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

The semi-vertical angle of a cone remains constant. If its height increases by 2%, then find the approximate increase in its volume.

The semi-vertical angle of a cone remains constant. If its height increases by 2%, then find the approximate increase in its volume.

Assertion (A) : If semi vertical angle of a cone is 45^(@) and height is 30.05 cm then approximate volume of cone is 9045.08 pi c.c Reason(R ): When semi vertical angle is 45^(@) approximate error in volume is deltav=pir^(2)deltah

Semi - vertical angle of a right circular cone is 30^@ . If the ratio of the numerical value of the volume and slant surface area be 1:3 , the radius of the base is