Question

Marjorie needs to calculate how much water a cylindrical tank will hold. The tank is 9 feet high and has a diameter of 5 feet. Her work is shown below. Step 1: Step 2: Step 3: Step 4: cubic feet What error did Marjorie make when calculating the volume of the tank?

Answer 1

Option B, "In step 2, she calculated 2.5 squared incorrectly."

Explanation:

She got the formula correct, but when she multiplied 2.5 squared, she wrote 5, but the correct answer is 6.25. Thus, the correct answer is option B

Hope this helped :)

Answer 2

The volume of the cylindrical tank is 176.625 cubic feet.

Explanation:

Given : The tank is 9 feet high and has a diameter of 5 feet.

To find : Marjorie needs to calculate how much water a cylindrical tank will hold ?

Solution :

The volume of a cylinder is
`V=\pi r^2 h`

The diameter is d=5 feet

The radius is
`r=(d)/(2)`

`r=(5)/(2)=2.5` feet.

The height is h=9 feet.

Substitute the value in the formula,

`V=3.14* (2.5)^2* 9`

`V=3.14* 6.25* 9`

`V=176.625`

The volume of the cylindrical tank is 176.625 cubic feet.