Mathematics
Two equal cones are touching each other completely at the base circle. Given that the distance between the two vertices is 16 cm and the diameter of the base circle is 12 cm, find the total surface area of this solid.
Related Questions
Prove that : (sin A + sec A)2 + (cos A + cosec A)2 = (1 + sec A. cosec A)2.
Use the information given in the figure alongside and find :
(i) the equation of line AB.
(ii) the co-ordinates of point Q.
Points (4, 0) and (-3, 0) are invariant points under reflection in line L1; points (0, 5) and (0, -2) are invariant under reflection in line L2.
(i) Name and write the equations of lines L1 and L2.
(ii) Write P', the reflection of P(6, -8) in L1 and P" the image of P in L2.
(iii) State a single transformation that maps P' onto P".