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Q: How do you calculate the perimeter if you only know the area?
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How do you find the area from the perimeter of a rectangle?

If the only information that you have is ... A) the figure is a rectangle, and B) the perimeter ... then you cannot calculate the area. The area of a rectangle is the length multiplied by the height., The perimeter is twice the length plus twice the height. So, a rectangle with a length of 9 units and a height of 1 unit will have a perimeter of 20 units and an area of 9 square units. Another rectangle with a length of 6 units and a height of 4 units will also have a perimeter of 20 units, but it will have an area of 24 square units. To be able to calculate the area from the perimeter you need to know one of two additional things - either one of the measurements, or the ratio of the height to the length.+++To summarise, you can, IF you know the ratio as mentioned. Then apply that to half the perimeter to find the length and breadth.


What is the area of a rectangle whose perimeter is 136?

If the only information that you have is ... A) the figure is a rectangle, and B) the perimeter ... then you cannot calculate the area. The area of a rectangle is the length multiplied by the height., The perimeter is twice the length plus twice the height. So, a rectangle with a length of 9 units and a height of 1 until will have a perimeter of 20 units and an area of 9 square units. Another rectangle with a length of 6 units and a height of 4 units will also have a perimeter of 20 units, but it will have an area of 24 square units. To be able to calculate the area from the perimeter you need to know one of two additional things - either one of the measurements, or the ratio of the height to the length.


How do you find the area of a yard using the perimeter in square feet?

You can't only using the perimeter. You have to know length and width.


How can you find the area if you know the perimeter?

Only if you also know the shape and proportions. An equilateral triangle, for example.


Draw a flowchart that will compute and display the Area of a rectangle using the formula: Area = Length Width?

The formula for the perimeter of a rectangle is: p = 2(l + w) In other words, just add all four sides. You can't calculate the perimeter of the rectangle if you know only the length.


How do you get the area of the triangle from perimeter?

From only the perimeter you cannot.


Can you calculate the area if you have the perimeter and one side?

Only if you have one additional piece of information, such as that it is a rectangle or a triangle, or that all sides are equal.


How do you determine area when perimeter and length of a square is given?

The perimeter of square is 4 x length If you have perimeter only divide by 4 to get length and The area of square is length x length If you already have length that is all you need to know


What is the perimeter of 48 acres?

There's no way of knowing unless we know the shape. 48 acres is 232320 square yards. That could be a patch of land 10 yards wide and 23232 yards long, making the perimeter 46484 yards. If it was a square it would be about 482 yards on a side, making the perimeter 1928 yards.


What is the formula to calculate the perimeter of a triangle with b equals 5cm h equals 4cm and an unknown side?

If you know only the base and height, you have two unknown sides and it is not possible to calculate the perimeter. The perimeter can have any value greater than or equal to 5+sqrt(89) cm.


How do you find the perimeter when you know the area?

There is no possible way to. You can only add up all the sides to get the perimeter.---It is not impossible. You can get the perimeter from area very easily.First, you find the square root of the area, which will be the length of each side (assuming it is a square).Then, once you've found the length of each side, you multiply it by 4, and you should have the perimeter. (:


How do you calculate perimeter in acres?

There is no one answer, it depends on the shape. The smallest value of perimeter will be for a circle. For a four sided shape the smallest will be for a square, for a rectangle the perimeter gets bigger the longer and narrower the area becomes. Knowing the area in acres gives the number of square yards only, you have to know either the length or width, work out the width or length as the case may be, then just add up the four sides.