we know that
the surface area of the top of the water
is calculated with the formula of the area of a circle
Step 1
Find the radius of the water tank in the middle of the tank
by proportion
so
For h=5 m
the radius is equal to r=1.5 m
Step 2
Find the surface area
therefore
the answer is
the surface area of the top of the water is 
Answer:
La masa corporal, también conocida como índice de masa corporal, es un valor numérico de la relación entre peso y estatura. Por lo general, se muestra en kilogramos y la altura en metros.
Espero que esto ayude :)
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Which part of that ear is normally filled with fluid to aid in the transmission of sound waves ?
-The cochlea is the fluid filled part of the ear that transmits sound.
