If I have a perimeter of 28 inches, how many rectangles can I draw and what are the dimensions?

You can draw as many as you want.

Here is one:
8x6
Here is another
10x4
here is another
5x9

I need to have 7 and have already used up the whole numbers 1X13, 2X12, 3X11, 4X10, 5X9, 6X8, so what is the 7th rectangle measurement????

7x7

Thanks. I thought a square would not be classified as a rectangle.

http://www.mathwarehouse.com/geometry/quadrilaterals/parallelograms/is_square_rectangle.php

squares are rectangles, but rectangles are not all square. Look at the definition of a rectangle in your text.

To determine the number of rectangles you can draw with a perimeter of 28 inches, we need to consider the possible combinations of length and width that could give us this perimeter.

The perimeter of a rectangle is given by the formula: P = 2 * (length + width), where P represents the perimeter, length represents the length of the rectangle, and width represents the width of the rectangle.

Given a perimeter of 28 inches, we can set up the equation as follows: 28 = 2 * (length + width).

We need to find possible combinations of length and width that satisfy this equation. Here are a few examples:

1. Let's start with a rectangle measuring 7 inches in length and 7 inches in width: 28 = 2 * (7 + 7). This is a square.

2. Consider a rectangle measuring 8 inches in length and 6 inches in width: 28 = 2 * (8 + 6). In this case, the length and width are different.

3. Another example is a rectangle measuring 10 inches in length and 4 inches in width: 28 = 2 * (10 + 4).

Essentially, any combination of length and width that satisfies the equation 28 = 2 * (length + width) will give you a rectangle with a perimeter of 28 inches. You can continue exploring different lengths and widths to identify additional rectangles with this perimeter.