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Godlovesme

  • one year ago

HELP ASAP PLEASE!!!!! :(((((( Pyramid A is a square pyramid with a base side length of 18 inches and a height of 9 inches. Pyramid B has a volume of 3,136 cubic inches. How many times bigger is the volume of pyramid B than pyramid A? Give your answer as a percent. Provide an explanation and proof for your answer to receive full credit.

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  1. Godlovesme
    • one year ago
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    v= a^2 * h/3 or v= 1/3 * b * h im not sure which formula i have to use :/

  2. Godlovesme
    • one year ago
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    @Nnesha help please :(

  3. Godlovesme
    • one year ago
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    @LegendarySadist help please :))))

  4. anonymous
    • one year ago
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    Does it really matter which formula?

  5. Godlovesme
    • one year ago
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    um you'll get different answer so i guess it does

  6. anonymous
    • one year ago
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    Not really. a^2 is the same as b. Since a is side length and b is base area. And area of a square is side squared. And 1/3 * h is the same as h/3. In this situation, it would be easier to use the first though imo.

  7. Godlovesme
    • one year ago
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    if u use the first formula, you'll get 972 but if u use the 2nd one they you'll get 54 :/

  8. Godlovesme
    • one year ago
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    then*

  9. anonymous
    • one year ago
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    Ok. The only difference is that the second formula is used when you have the BASE AREA and the first is used when you have the BASE SIDE LENGTH. The formulas themselves will get you the same thing, the only difference is the amount of steps. In the first formula, you'd just plug in 18 and 9 and calculate, while in the second, you'd find the base (18^2) and then multiply by 3. Both get the same result though.

  10. Godlovesme
    • one year ago
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    ohh so which one do i use in this case? sorry im bad at this .-.

  11. anonymous
    • one year ago
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    You have the BASE SIDE LENGTH, so you'd use the first.

  12. Godlovesme
    • one year ago
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    okay so it's gonna be 972 cuz v= 18^2 * 9/3 v= 324 * 3 v= 972

  13. anonymous
    • one year ago
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    Yes. The volume will be 972 in^3

  14. Godlovesme
    • one year ago
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    yay! :) so what's the next step? :)

  15. anonymous
    • one year ago
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    \[\frac{3136}{972}\] Dividerino

  16. Godlovesme
    • one year ago
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    3.226 since it's asking me for percentage, do i multiply it by 100?

  17. anonymous
    • one year ago
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    Yeah.

  18. Godlovesme
    • one year ago
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    okay thank you soo much !! i really appreciate your help thanks! :)))

  19. anonymous
    • one year ago
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    No problem :)

  20. Godlovesme
    • one year ago
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    (:

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