The figure shows a vessel in the shape of an inverted right circular cone. The vessel contains some water. (a) Find the area of the surface of the vessel in contact with water.

(b) Find the height XA of the vessel. Hence, find the additional volume of water required to fill up the vessel.

I've done (a):
In △AYE,
EA
The area of the surface if the vessel in contact with water
= 331 cm² (cor. to 3 sig. fig.)

Could you help me with (b) please?​

Asunflower was 20 1/2 inches tall. over the next 6 months, it grew to a height of 37 inches tall. what was the average yearly growth rate of the height of the plzzz write a proportion i will give you 100 points

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