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A rectangle is 4cm longer than it is wide what are the demesions if the area is 8cm?
Wiki User
∙ 15y ago
Area of a rectangle = length x width If length = L and width = W, then Area = L x W For this case, the length is 4 cm longer than the width. Therefore, L = W + 4cm Replace length in the area equation at the top with this new L value: Area = (W + 4cm) x W Area = W^2 + (4cm) x W And area is 8 cm^2 (I assume you meant to say 8cm^2 is the area) Then: 8cm^2 = W^2 +4W This is a quadratic equation (because of the w^2 value), if you solve for W using the quadratic formula (Google it), you get W = 1.464cm Therefore, the length L = W + 4cm = 1.464cm + 4cm = 5.464cm Dimensions are L = 5.464cm and W = 1.464cm
Wiki User
∙ 15y ago
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What is the definition for area of a rectangle?
The area of a rectangle is often defined to be the product of its length times its width. Making the area of the rectangle a definition rather than a theorem which would have to be proved from presumably more basic assumptions seems right to me.
Why is the area of a rectangle greater than that of a parallelogram?
Not necessarily. In fact, if a rectangle and parallelogram have the same base and height, their areas are equal.
Can a rectangle have a greater perimeter than another one but have a greater area too?
yes it can; a rectangle 5 by 2 has perimeter 14 and area 10 for example; a rectangle 10 by 2 has perimeter 24 and area 20, both greater.
Can a rectangle have a greater perimeter and also have a greater area?
Of course, a rectangle can have a greater perimeter and a greater area. Simply double all the sides: the perimeter is doubled and the area is quadrupled - both bigger than they were.
what- the area of a rectangle is 36 square centimeters. The length is 1 foot more than twice the width.What is the width of the rectangle?
4 cm
The length of a rectangle is 4 centimeters longer than the width If the perimeter of the rectangle is 20 centimeters what is the area of the rectangle?
21cm3
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The width of a rectangle is y feet and the rectangle is 4 feet longer than it is wide What is the area of the rectangle?
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Area of a rectangle is length times width, therefore if the length is two feet longer than the width then the length is 9 and the width is 7, when they are multiplied you get 63
What is the area of a rectangle if the perimeter is 60 cm and the length is 12 cm longer than it is wide?
Perimeter of a rectangle is 2(l+b).Area of rectangle is 216 centimeter square.
What is the width of the rectangle if the area of a rectangle is thirty five square feet the length is two feet longer than the width?
width is 5 feet
Is it possible to have a rectangle that has a greater area than other rectangles?
yes it just means that it is longer and taller
What is the width of a rectangle is 11 feet its length is three times longer than it width What is the area of the rectangle?
Area of a rectangle: length times width Width=11 Length= 11x3= 33 11x33= 363 square feet
If a rectangle is 10 meters longer than its width what is its width?
= If a rectangle is 10 meters longer than its width what is its width? =
The area of a rectangle is 35 square feet. The length is two feet longer than the width. What is the width of the rectangle?
The length is 7 feet and the width is 5 feet
The area of a rectangle is 48 square feet The length is two feet longer than the width What is the width of the rectangle?
The width is 6 feet. The length is 8 feet.
What is the area of a rectangle with a perimeter of 14?
Without further information it is impossible to say (exactly): If the rectangle was 0.5 x 6.5, its perimeter is 14 units and its area is 3.25 units2 If the rectangle was 1 x 6, its perimeter is 14 units and its area is 6 units2 If the rectangle was 2 x 5, its perimeter is 14 units and its area is 10 units2 If the rectangle was 3 x 4, its perimeter is 14 units and its area is 12 units2 If the rectangle was 3.5 x 3.5, its perimeter is 14 units and its area is 12.25 units2 (and it's a square). It all depends upon the lengths of the longer and shorter sides of the rectangle: as long as 2 x longer + 2 x shorter = 14, any area greater than 0 units2 and less than or equal to 12.25 units2 can be made.
