Consider a cone with slant height 13m and perpendicular height 12m.

Hence, find the length of the diameter of the cone's base.
Please directly answer the question and provide the final value, e.g., 1, 2.5, 300.
Question: Consider a cone with slant height 13m and perpendicular height 12m.

Hence, find the length of the diameter of the cone's base.
Please first conduct reasoning, and then answer the question and provide the final value, e.g., 1, 2.5, 300, at the end.
Question: Consider a cone with slant height 13m and perpendicular height 12m.

Hence, find the length of the diameter of the cone's base.