The following is a right pyramid on a square base with side length 16cm. A right pyramid has its apex aligned directly above the centre of its base.

The edge length VA is 26cm.
Find the length of VW, the perpendicular height of the pyramid correct to two decimal places.
Please directly answer the question and provide the final value, e.g., 1, 2.5, 300.
Question: The following is a right pyramid on a square base with side length 16cm. A right pyramid has its apex aligned directly above the centre of its base.

The edge length VA is 26cm.
Find the length of VW, the perpendicular height of the pyramid correct to two decimal places.
Please first conduct reasoning, and then answer the question and provide the final value, e.g., 1, 2.5, 300, at the end.
Question: The following is a right pyramid on a square base with side length 16cm. A right pyramid has its apex aligned directly above the centre of its base.

The edge length VA is 26cm.
Find the length of VW, the perpendicular height of the pyramid correct to two decimal places.