anonymous
  • anonymous
what is the formula for lateral area of a square pyramid
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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mathstudent55
  • mathstudent55
What are you given?
mathstudent55
  • mathstudent55
A square pyramid has 4 sides that are congruent triangles.
anonymous
  • anonymous
i just want the formula @mathstudent55

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mathstudent55
  • mathstudent55
Do you know the height of each side, or just the height of the pyramid?
anonymous
  • anonymous
that is cheating i just want the formula
anonymous
  • anonymous
is it 2xbxl
mathstudent55
  • mathstudent55
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mathstudent55
  • mathstudent55
Is b the length of the side of the square base, and l the height of each triangular side?
anonymous
  • anonymous
you know what forget it sorry but you are not helping me
mathstudent55
  • mathstudent55
|dw:1432934757998:dw|
anonymous
  • anonymous
|dw:1432934845064:dw|
mathstudent55
  • mathstudent55
I can't help you because I still don't understand what info about the pyramid you were given, and the formula is different depending on what info you are given.
mathstudent55
  • mathstudent55
|dw:1432934850632:dw|
mathstudent55
  • mathstudent55
\(l = \sqrt{\left( \dfrac{s}{2} \right)^2 + h^2}\) \(A_{one~face} = \dfrac{s \sqrt{\left( \frac{s}{2} \right)^2 + h^2}}{2}\) \(Lateral~Surface~Area = 4 \times \dfrac{s \sqrt{\left( \frac{s}{2} \right)^2 + h^2}}{2}\) \(Lateral ~Surface~Area = 2 s \sqrt{\left( \frac{s}{2} \right)^2 + h^2}\) \(Lateral ~Surface~Area = s \sqrt{s^2 + 4h^2}\)
mathstudent55
  • mathstudent55
If you are given the length of the base, s, and the height of each triangular face, l, then the formula is: \(Lateral~Surface~Area = 4 \times \dfrac{s \times l}{2} \) \(Lateral~Surface~Area = 2sl \)

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