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The volume of a pyramid can be evaluated by using the equation V Ah 3 1 = where h is the height of the pyramid and A is the area of the base of the pyramid. The problem is to design such a triangular pyramid where the volume is V = 72 cm3 and the height is h = 12 cm. The base of the pyramid is a rectangular isosceles triangle. a) Determine the area of the base of the pyramid. Pay attention to the unit of your answer. b) Draw a picture of the base triangle of the pyramid in a proper scale.

  • 3 years ago
  • 3 years ago

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  1. sstarica Group Title
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    just one question, how can you have a rectangular isosceles triangle? It's either a recatangular base or a triangular one lol

    • 3 years ago
  2. BecomeMyFan=D Group Title
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    that is where i am confused LOL but thats the question

    • 3 years ago
  3. sstarica Group Title
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    Okay, if it's a rectangular base then the Area of the base = LW , so :\[V =Ah/3 \]\[A = (72)(3)/12 = 18cm^2\] Or, if the base was triangular: \[A = bh/2\] then: \[V = Ah/6\] \[A = (6)(72)/12 = 36 cm^2\] that's for part (a)

    • 3 years ago
  4. sstarica Group Title
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    do you have options? for the answers?

    • 3 years ago
  5. BecomeMyFan=D Group Title
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    no

    • 3 years ago
  6. sstarica Group Title
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    >_< then write down both lol, I'm sorry. I've never heard of a rectangular isosceles triangle ._.

    • 3 years ago
  7. BecomeMyFan=D Group Title
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    but for part a i got 18

    • 3 years ago
  8. sstarica Group Title
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    same same , so I guess it's a rectangular base after all ^_^

    • 3 years ago
  9. BecomeMyFan=D Group Title
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    ok, well i guess the person who prepared the exam was either drunk or really tired

    • 3 years ago
  10. sstarica Group Title
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    maybe, rectangular is a trick in the question and the base is triangular after all. I agree. ^^"

    • 3 years ago
  11. sstarica Group Title
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    why don't you ask google? lol

    • 3 years ago
  12. sstarica Group Title
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    I'm telling you, there's no such thing as a rectangular triangle =_=

    • 3 years ago
  13. BecomeMyFan=D Group Title
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    she doesnt know

    • 3 years ago
  14. sstarica Group Title
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    it's either a square, rectangle or triangle. Google = she? ._. LOL!

    • 3 years ago
  15. BecomeMyFan=D Group Title
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    <-_-> yes, ofcourse google is she <-_-> What did you think.

    • 3 years ago
  16. sstarica Group Title
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    ^^" Google = he? why did you announce google as FEMALE! >_>

    • 3 years ago
  17. sstarica Group Title
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    males created it!

    • 3 years ago
  18. BecomeMyFan=D Group Title
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    so? just because males created it does not mean anything, google is she, i kid you not

    • 3 years ago
  19. sstarica Group Title
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    nope, it's a HE

    • 3 years ago
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