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### Course: Basic geometry and measurement>Unit 1

Lesson 1: Count unit squares to find area

# Creating rectangles with a given area 1

Lindsay creates a rectangle with a given area.   Created by Lindsay Spears.

## Want to join the conversation?

• At Why not one column?
• Because it asks for a rectangle with 10 square units but one column would only be 6 square units.
• How would you make 5 square units?
• draw 1 column or line like this□□□□□, remember, there's no space between the square, but the input method does this, and I only demo the line
• How do you make 10 square units, but you only have 5 square units?
• Just think. You can get 10 through 1 x 10, or 2 x 5. Right? 2 x 5 = 5 + 5 = 10. So a rectangle 2 by 5 would make sense.
• why is 4 like y?
• *Perimeter is the distance around a shape right?*
• Hi Leyla! You're right. Perimeter is the distance around a shape. It can also be described as all the side lengths added together. Like if you had a square with side lengths of 2, the perimeter would be 8. Hope this helps. Have a great day! 😃
• bruh, it's easy.It is just about the area
• - what is the area
- Rectangle/rectanglar
- Figure and shape
• I don't know yet
• why is the 4 y
• Because she accidentally wrote it like that.
• At Why not one column?
• Because we need to get a rectangle with an area of `10u²` or ten square units. With this in mind, because we know that the area formula is `Length x Width = Height`, we can find out that the two possibilities are `5 x 2 = 10` or `10 x 1 = 10`.
The reason that we cannot multiply or even use just one column is for the reason that `10u²` is needed and by using the area formula mentioned above, we can do `6 x 1`, which gives us an area of `6u²` not `10u². Which means that it is incorrect, and we cannot use simply one column, we must use two in another fashion.