Question

How deep is the water? The 4 choices below are all possible answer choices.

Answer 1

To determine the depth of the water, let's use the Pythagorean Theorem.

`x=√(c^2-a^2)`

where c = the length of the hypotenuse and a = length of one of the legs.

Since c = 15 ft and a = 6 ft, let's plug them into the formula above.

`x=√((15ft)^2-(6ft)^2)`

Then, solve.

`x=√(225ft^2-36ft^2)`
`x=√(189ft^2)`

Get the square root of 189 using a calculator.

`x=13.7477ft\approx13.7ft`

Therefore, the water is approximately 13.7 feet deep.