7th grade

posted by .

if you take apart 5x5x5 cube and build a pyramid with the same cubes, with each layer of the pyramid being a square and the top ending as a 1x1x1. How many tiers can you make?

  • 7th grade geometry? -

    I assume that the larger cube is made up of 125 (5*5*5) 1x1x1 cubes. You can start at the top with 1 cube, 4 (2^2) cubes, 9 (3^2) cubes... and so on, until you have used all 125. You may have some leftover cubes.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. math

    IN JIM'S PE CLASS, 6 STUDENTS WERE USED TO MAKE A HUMAN PYRAMID. 3 PEOPLE WERE ON THE BOTTOM, 2 ON THE NEXT LAYER AND 1 ON TOP. JIM WANTS TO MAKE A GIANT PYRAMID WITH 7 LAYERS. HOW MANY STUDENTS WILL HE NEED AND HOW MANY WILL BE ON …
  2. MATHS

    The shape, a cube and a square based pyramid. Both shapes have the same base and the same height. Which expression represents the total volume of this shape?
  3. Mathematics

    OPQRS is a right pyramid whose base is a square of sides 12cm each. Given that the slant height of the pyramid is 15cm. Find the height of the pyramid, the volume of the pyramid, and the total surface area of the pyramid by first drawing …
  4. Geometry

    When finding the surface area of a composite figure, which in this case consists of a square pyramid sitting on top of a cube, I know that the first step is to find the surface area of the cube, but after that I would find the surface …
  5. 7th grade math

    How many times larger is a cube than a pyramid with the same base?
  6. 7th grade math

    How many times larger is a cube than a pyramid with the same base?
  7. Math

    Jan built a cube from unit cubes (each 1 by 1 by 1 unit). Ken took this cube apart,and used the unit cubes to build a rectangular solid that was the same height asJan's cube but 2 units greater in width and 2 units less in length. …
  8. Maths

    OPQRS is a right pyramid whose base is a square of sides 12cm each. Given that the slant height of the pyramid is 15cm. Find the height of the pyramid. The volume of the pyramid and the total surface of the pyramid.
  9. Maths

    OPQRS is a right pyramid whose base is a square of sides 12cm each. Given that the slant height of the pyramid is 15cm. Find the height of the pyramid. The volume of the pyramid and the total surface of the pyramid.
  10. Geometry

    The volume of a square pyramid is equal to _____ times the volume of a cube where the bases are the same, but the square pyramid is half the height of the cube.

More Similar Questions