A rectangular water trough at a fish hatchery measures 4 feet wide, 9 feet long, and 6 feet deep. If the trough is filled to the top, how many water can it hold?

the answer is 13 cm

the answer is:

the correct option is the option b.

to calculate the surface area of the right cylinder, we need to use the following formula:

from the picture we know that:

so, substituting and calculting we have:

hence, we have that the correct option is the option b.

have a nice day!