[" 1."],[" 3."2h" and "h" and vertical angles "4a" and "6 alpha" respectively.Find the ratio of two volumes in between "],[" the cones."]

A cone made of paper has height 3h and vertical angle 2 alpha It contains two other cones of height 2h and h and vertical angles 4 alpha and 6 alpha respectively.Find the ratio of the two volumes in between the cones.

A cone made of paper has height 3h and vertical angle 2alpha . It contains two other cones of height 2h and h and vertical angle 4 alpha and 6 alpha . Find the ratio of the two volume in the cones.

A cone made of paper has height 3h and vertical angle 2 alpha. It contains two other cones of height 2h and h and vertical angle 4 alpha and 6 alpha. Find the ratio of the two volume in the cones.

If h be the height and alpha the semi vertical angle of a right -circular cone, the its volume is given by

The radii of the bases as well as the heights of a cone and a cylinder are each equal to h and the radius of a hemisphere is also equal to h. Find the ratio of the volume of cylinder, hemisphere and cone.

If the volume , height and semi - vertical angle of a right circular cone be v,h and alpha respectively, then prove that 3v tan alpha=pi r^3 , where r= radius of base.

Three vertical poles of heights h_1, h_2 and h_3 at the vertices A, B and C of a angleABC subtend angles alpha,beta and gamma respectively at the cicumcentre of triangle. If cotalpha, cotbeta and cotgamma are in A.P. then h_1,h_2,h_3, are in

If the direction ratios of two lines are 2, -3, 6 and 1, -2, 2 respectively then the angle between the lines is -