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anonymous

  • one year ago

A triangular pyramid is cut by a plane. In which case is the cross section a quadrilateral? when the plane is perpendicular to the base and passes through the apex when the plane is parallel to the base of the pyramid when the plane intersects the base and two lateral faces of the pyramid when the plane intersects the base and all three lateral faces of the pyramid ??????? help please

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  1. anonymous
    • one year ago
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    @LegendarySadist

  2. anonymous
    • one year ago
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    @Legends

  3. anonymous
    • one year ago
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    @Hero

  4. anonymous
    • one year ago
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    @rosy

  5. anonymous
    • one year ago
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    can anybody help me :/

  6. anonymous
    • one year ago
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    @GreatGuy

  7. welshfella
    • one year ago
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    this is tricky..

  8. mathmate
    • one year ago
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    |dw:1432900780481:dw| In geometry, a diagram always helps.

  9. mathmate
    • one year ago
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    |dw:1432900922589:dw|

  10. mathmate
    • one year ago
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    |dw:1432901406976:dw| I'll let you try the other two cases.

  11. anonymous
    • one year ago
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    I had got it wrong anyway but thank you because that will help others who need help with this question

  12. mathmate
    • one year ago
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    No problem! Do you realize that your math grade would have been much better if you tried to find the right answer whenever you get it wrong? It will help you understand so you will get it in the future. Math is a cumulative knowledge. Anything you learn today is need to learn tomorrow's topic. Everything you learn today is just a preparation for future topics. If you "learn and forget", you are heading for trouble.

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spraguer (Moderator)
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