A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

a square pyramid's base is 7m its height i 14m 1hat is the surface area

  • This Question is Closed
  1. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @Vocaloid i want to try to solve this and i will gladly fan you and give you a medal if possible

  2. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    it is a square pyramid the base of the triangles are 7 and the height is 14 and the base is 7 and height is 7 for the square

  3. Vocaloid
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    oh wait hold on, my formula is wrong > >

  4. Vocaloid
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    let me draw it out first

  5. Vocaloid
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    |dw:1443835908080:dw|

  6. Vocaloid
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ok, first step is to find the area of the bottom|dw:1443835987601:dw| what is the area is this square?

  7. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    49

  8. Directrix
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    The formula for the surface area of a regular square pyramid is this: SA = B + 1/2 * p * L where B is the area of the square base, p is the perimeter of the square base, and L is the slant height of the pyramid.

  9. Directrix
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    You already have the value of B, the base, to be 49.

  10. Directrix
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    The perimeter of the base is 28. |dw:1443837360372:dw|

  11. Directrix
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Finding the slant height will involve using the Pythagorean theorem. @galaxystare We will pick up at that point when you are back online.

  12. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @Directrix i need the area|

  13. Directrix
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Find the slant height of the regular pyramid. It is the height of one of the triangular faces of the pyramid. Slant height is not the same as the height of the pyramid.

    1 Attachment
  14. Directrix
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Use the Pythagorean Theorem: L^2 = 14^2 + (3.5)^2 @galaxystare Solve for L and post what you get, okay?

  15. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.