what is the formula for finding the length of a square?
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Since the picture is a square its length and width are equal. length × width= length × length = length2 = 441 square cm. Thus length = √441 = 21 cm.
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The area of a rectangle is equal to its length multiplied by its width. This equation is represented by A=L*W. If you have only the area and width, you can use the same equation to solve for the area. For example, if the area is 60 and the width is 5, your equation will look like this: 60 = x*5.
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a^2 + b^2 = c^2 In this formula, a and b are the lengths of the two legs and c is the length of the hypotenuse. The ^2 signifies that a, b, and c are squared. A number squared is equal to that number multiplied by itself -- for example, 4^2 is equal to 4 times 4, or 16.
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In order to work out square meters, measure the length and width of an area you're calculating using meters and centimeters. Next you need to multiply the length and width together to get the area in square meters: Width x Length: 9 x 10 = 90.
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Simply multiply your measurements for length and width to determine the area of your square or rectangular area in square inches. For example, let's say that, for a rectangular area, you measure a length of 4 inches and a width of 3 inches. In this case, the area within your rectangle is 4 × 3 = 12 square inches.
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The most basic area formula is the formula for the area of a rectangle. ... That is, the area of the rectangle is the length multiplied by the width. As a special case, as l = w in the case of a square, the area of a square with side length s is given by the formula: A = s2 (square).
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The formula for the area A of a rectangle is: A = lw, where l is the length of the rectangle and w is the breadth or width of the rectangle. = 16 cm² is the final answer.
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The area of a rectangle (A) is related to the length (L) and width (W) of its sides by the following relationship: A = L ⋅ W. If you know the width, it's easy to find the length by rearranging this equation to get L = A ÷ W. If you know the length and want the width, rearrange to get W = A ÷ L.
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To find the width, multiply the length that you have been given by 2, and subtract the result from the perimeter. You now have the total length for the remaining 2 sides. This number divided by 2 is the width.
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Finding Length and Width When You Know Area and Perimeter If you happen to know the distance around the rectangle, which is its perimeter, you can solve a pair of equations for L and W. The first equation is that for area, A = L ⋅ W, and the second is that for perimeter, P = 2L + 2W.
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The formula is a + b + c+ d = perimeter. For example, suppose that a quadrilateral has sides with lengths of 1, 5, 3 and 4 inches. The perimeter equals 1 + 5 + 3 + 4 or 13 inches.
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To work out the area of a square or rectangle, multiply its height by its width. If the height and width are in cm, the area is shown in cm². If the height and width are in m, the area is shown in m². A square with sides of 5 m has an area of 25 m², because 5 × 5 = 25.
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Multiply the length and width together. Once both measurements are converted into meters, multiply them together to get the measurement of the area in square meters.
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Explanation: To find the width, multiply the length that you have been given by 2, and subtract the result from the perimeter. You now have the total length for the remaining 2 sides.
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The area of a rectangle (A) is related to the length (L) and width (W) of its sides by the following relationship: A = L ⋅ W. If you know the width, it's easy to find the length by rearranging this equation to get L = A ÷ W.
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Correct answer: The length of a diagonal of a square is times the length of a side; since the rhombus has perimeter 80, each side measures one fourth of this, or 20, and diagonal has length .
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Example: A four-sided shape has two adjacent sides with lengths of 4 meters. You can find the area of this square by multiplying its base times its height: 4 × 4 = 16 square meters.