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You know because the area is the distance inside a polygon and a perimeter is the distance outside a polygon.
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∙ 13y ago
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Can you calculate the area if you know the perimeter?
No, you can not calculate an area if you know just the perimeter. For example, rectangle with sides of 10 and 20 would have a perimeter of 60 and an area of 200, but a square of sides 15 would have a perimeter of 60 and an area of 225. You need to know more details about the shape than just the perimeter.
If two squares have the same area what do you know about the perimeter?
Then they both will have the same perimeter
When do you need to know area and perimeter?
You need to know perimeter when you're fencing the yard. You need to know area when you're mowing it, seeding it, fertilizing it, buying it, or selling it.
How do you find the area if you know the perimeter?
It is impossible
How do you find the perimeter of a triangle if you know the area?
You cannot. For a given area, an equilateral triangle will have the smallest perimeter but that perimeter can be increased - without limit - without increasing the area.
How can you find the perimeter of a square if you know the area?
You square-root the area
Is area always more or equal to the perimeter in a square?
The area of a square is equal to twice the square's perimeter.
Why is area and perimeter useful?
When you are buying a house you will want to know how much you land you have (area) and you will also want know how much fencing you need for you garden (perimeter).
Is it true that you can't find the perimeter if you don't know the area?
Not exactly. If I know the side lengths, I can still find the perimeter
How do you figure out the area if you know the perimeter?
You can't. The perimeter doesn't tell the area. There are an infinite number of shapes with different dimensions and different areas that all have the same perimeter.
Can you find the perimeter and length if you know the area and width?
no
If you know a perimeter of a square but not the length or width how do you find the area?
Divide the perimeter by 4 and then square the result to find the area of the square.
