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A rectangle has four sides joined by right angles between adjacent sides. There are two pairs of two equal sides, having lengths A and B.

To find the perimeter you add up all the sides, A + A + B + B. This may also be written as 2 x A + 2 X B or 2A +2B or 2 (A+B).

To find the area, you multiply A x B.

If A = B then you have a square with perimeter 4 x A and area A2

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Q: How do you do perimeter and area of rectangles?
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Continue Learning about Geometry

If two rectangles have the same area do they also have to have the same perimeter?

Not necessarily. Let's say that there is a circle with the area of 10. Now there is a star with the area of 10. They do not have the same perimeter, do they? That still applies with rectangles. There might be a very long skinny rectangle and a square next to each other with the same area, but that does not mean that they have the same perimeter. Now if the rectangles are congruent then yes.


What are length and width of a rectangles sides which has an area of eighteen meters squared and a perimeter of eighteen meters?

Area can never be as low as the perimeter value -- impossible question.No impossible if read correctly...18 meters squared is the area and 18 meters is the perimeter.


Can different rectangles have the same area and perimeter?

It's very easy for two rectangles to have the same area and different perimeters,or the same perimeter and different areas. In either case, it would be obvious toyou when you see them that there's something different about them, and theywould not fit one on top of the other.But if two rectangles have the same area and the same perimeter, then to look at themyou'd swear that they're the same rectangle, and one could be laid down on the otherand fit exactly.


How does a change in perimeter influence the area of a shape?

There is no systematic relationship between the two. Consider the following 2 rectangles: A = 8 cm * 8 cm: Perimeter = 32 cm, area = 64 cm2 B = 14 cm * 4 cm: Perimeter = 36 cm, area = 56 cm2 The perimeter of B is larger, but the area is smaller.


How much fence do you need for perimeter fence 8 acres?

The perimeter, for a given area, varies depending on the shape. It is different, for example, for a circle, for a square, and for rectangles of different length/width ratio.

Related questions

Why does rectangles have the same area and perimeter?

they dont


What is the area and perimeter of a large square if two congruent rectangles are arranged so they from a square with each perimeter of rectangles is 36 inches?

area = 144 square units perimeter = 48 units


What is the relationship for perimeter and area for rectangle?

There is no relationship between the perimeter and area of a rectangle. Knowing the perimeter, it's not possible to find the area. If you pick a number for the perimeter, there are an infinite number of rectangles with different areas that all have that perimeter. Knowing the area, it's not possible to find the perimeter. If you pick a number for the area, there are an infinite number of rectangles with different perimeters that all have that area.


How many rectangles have the same area and perimeter of 18?

thare is only 1 differint rectangles


Can a rectangles perimeter be the same as the area?

Yes, it can because a 3 by 6 rectangle has the perimeter of 18 and has the area of 18! :)


How do you convert perimeter into square meters?

There is no standard relationship between perimeter and area. For example, you can have two rectangles that have the same perimeter, but different area.


How do you calculate the perimeter and area of a shape?

Perimeter: add all sides area: multiply length times width for rectangles


Find 4 rectangles with same area with different perimeter?

10cm by 10cm (perimeter=40cm), 5cm by 20cm (perimeter=50cm), 50cm by 2cm (perimeter=104cm), 100cm by 1cm (perimeter=202cm). All of these rectangles' areas are 100cm2


If two rectangles have the same area do they also have to have the same perimeter?

Not necessarily. Let's say that there is a circle with the area of 10. Now there is a star with the area of 10. They do not have the same perimeter, do they? That still applies with rectangles. There might be a very long skinny rectangle and a square next to each other with the same area, but that does not mean that they have the same perimeter. Now if the rectangles are congruent then yes.


Do two different rectangles with the same perimeter necessarily have the same area?

no


If a rectangles area is 12 cm squared what is the perimeter?

12


What is the area of a square formed by six rectangles, given that the total perimeter of the six rectangles is 330 cm?

330سم