A solid cone of base radius 10cm is cut into two parts through the mid-point of its height , by a plane parallel to its base. find the volumes of the two parts of the cone
let the height of the cone be H and the radius be R.
this cone is divided into two parts through the mid-point of its axis. therefore AQ=1/2 AP
since therefore triangle AQD is similar to the triangle APC.
by the condition of similarity
volume of the cone ABC=
volume of the frustum=volume of the cone ABC-volume of the cone AED
volume of the cone AED=
therefore