Write the area of the shape below in square centimeters. [tex]$a=\quad cm^2$[/tex]
Answer (2)
The table has 3 rows and 5 columns, so calculate the total number of cells.
Multiply the number of rows by the number of columns: 3 × 5 = 15 cells.
Multiply the number of cells by the area of each cell (1 c m 2 ): 15 × 1 = 15 c m 2 .
The total area of the table is: 15 c m 2 .
Explanation
Problem Analysis We are given a table with 3 rows and 5 columns. Each cell in the table has an area of 1 square centimeter. We need to find the total area of the table, which we will denote as a .
Calculate the Number of Cells To find the total area, we first need to calculate the total number of cells in the table. This is done by multiplying the number of rows by the number of columns: Number of cells = Number of rows × Number of columns = 3 × 5 = 15 So, there are 15 cells in the table.
Calculate the Total Area Now, we know that each cell has an area of 1 square centimeter. To find the total area of the table, we multiply the number of cells by the area of each cell: Total area = Number of cells × Area of each cell = 15 × 1 = 15 Therefore, the total area of the table is 15 square centimeters.
State the Final Answer Finally, we can write the value of a :
a = 15 cm 2 So, the total area of the table is 15 square centimeters.
Examples
Imagine you are tiling a rectangular floor with square tiles. If you have a floor that is 3 tiles wide and 5 tiles long, and each tile is 1 square centimeter, then the total area you need to cover is 15 square centimeters. This simple calculation helps you determine how many tiles you need for your project.
To find the area of a shape in square centimeters, identify its type and use the respective area formula. Substitute the given dimensions into the formula and calculate the area. Finally, present the answer using the correct format, for example, a = 15 cm 2 if applicable.
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