Ineed , i get like 4712, but its not an answer

So you will need to find the height, and we can do so by using the pythagorean theorem, which is . Using this formula, we can make the equation

Firstly, solve the exponents:

Next, subtract 225 on both sides:

Lastly, square root both sides, and your answer is h = 20.

Now that we got the height, we can solve for the volume, which is . Using this formula, we can form our equation to be

Firstly, solve the exponent:

Next, multiply 225 and 20/3, and your answer will be V = 1500π, or the third option.

step-by-step explanation:

given perimeter: 28cm

length: 9cm

atp,

2(l+w)=p of the reactangle

2(9+x)=28

18+2x=28

2x=28-18

x=10/2

x=5

therefore width is 5 cm