Which of the cones listed below can be formed from a sector of a circle of radius by aligning the two straight sides?
A cone with slant height of 15 and radius 8
A cone with slant height of 15 and radius 9
A cone with slant height of 15 and radius 10
A cone with height of 15 and radius 9
A cone with slant height of 9 and radius 15