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What will be the unit digit of the squares of the following number 81?
The unit digit of the square of 81 will be 1.
How many squares are there in a 4x3 grid?
In a 4x3 grid, you can count the number of squares of various sizes. There are 12 unit squares (1x1), 6 squares of size 2x2, and 1 square of size 3x3. Therefore, the total number of squares is 12 + 6 + 1 = 19.
Why do you use cubes instead of squares to measure the volume of a rectangular prism?
Squares cannot be used to measure a three-dimensional volume since they have only two dimensions. Squares are used to measure surface areas, such as the outer surface of a rectangular solid. Cubes are used to measure volume because they are the simplest geometric division of a three-dimensional space. For a rectangular solid, multiplying H x W x D literally tells you the number of cubes (of the given unit of measurement) that can be contained within that space.
What is the best unit to measure 20 oranges?
A dimensionless unit - an integer (or counting number)!
What is a whole number used for measure?
Multiples of the unit of measurement.
