In the given figure, points M and N divide the side AB of ΔABC into three equal parts. Line segments MP and NQ are both parallel to BC and meet AC in P and Q respectively. The length of AC is equal to:
Draw a circle with its two chords PQ and RS such that PQ is not parallel to RS. Draw the perpendicular bisector of PQ and RS. At what point do they intersect each other.
A sphere and a right circular cylinder have the same radius. If the volume of the sphere is one fifth of the volume of the cylinder, what is the ratio of the height of the cylinder to its radius?