math

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the base of a rectangular prism is congruent to the base of a pyramid. The height of the pyramid is 3 times the height of the prism. Which figure has a greater volume? Explain.

I'm terrible with these kind of word problems. If you could explain that would be great.

  • math -

    can someone please help me!?!

  • math -

    ht. of rectangle = h.

    ht. of pyramid = 3h.

    Vr = Ab*h = Volume of rectangle.

    Vp = Ab*3h/3,
    The "3s" cancel.
    Therefore, Vp = Vr = Ab*h.

    Based on the dimensions given,the
    volume of the rectangle is equal to
    the volume of the pyramid.


    Ab*h = Volume of pyramid

  • math -

    A rectangular prism has a base of 12cm2 and a height of 6 cm what is its volume

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