you find the volume of the right rectangular prism using the formula method and want to check your answer using the cube method. What is the edge length of the cubes you will use?
To check the volume of a right rectangular prism using the cube method, you need to divide the volume of the prism by the volume of each cube.
Let's say the volume of the right rectangular prism is V and the volume of each cube is x.
Using the formula method, the volume of the right rectangular prism is calculated as V = l * w * h, where l is the length, w is the width, and h is the height of the prism.
Now, to find the volume of each cube, we use the formula for the volume of a cube: x^3.
To check our answer using the cube method, we divide the volume of the prism by the volume of each cube: V/x = (l * w * h) / x^3.
To simplify this expression, we can rewrite it as: V = l * w * h * x^2.
Therefore, to check your answer using the cube method, you will need cubes with an edge length of x.