what is the formula to find perimeter?
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The formula for the perimeter of a rectangle is often written as P = 2l + 2w, where l is the length of the rectangle and w is the width of the rectangle. The area of a two-dimensional figure describes the amount of surface the shape covers. You measure area in square units of a fixed size.
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Correct answer: 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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We may be asked to find the perimeter of a compound shape like the one above. To find the perimeter, we simply add up the lengths of each outside edge. It may be helpful to look out for number bonds when adding the sides. For example, 7 + 3 = 10.
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To find the perimeter of a regular hexagon you must first know the number of sides in a hexagon which is 6. When you know the number of sides of a regular polygon to find the perimeter you must multiply the side length by the number of sides. The answer for the perimeter is .
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Perimeter of Isosceles Triangle. To calculate the perimeter of an isosceles triangle, the expression 2s + b is used, where s represents the length of the two congruent sides and b represents the length of the base.
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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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In these formulae r is the radius and d is the diameter. C = π X d (3.14159 x 10) = 31.42 (to 4 s. f.) To calculate the perimeter of an arc (part of a circle) from the angle you can calculate the fraction of the circle. = 4.19cm (to 3 s.f.) The perimeter of the whole sector is therefore 4.19 + 8 = 12.19 (4 s.f.).
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Explanation: To find the perimeter we must find the hypotenuse and then sum all side lengths to find the perimeter. Remember the hypostenuse of an isoceles right triangle is the side length multiplied by the square root of .
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The perimeter of a rectangle (the distance around it) can be found either by finding the sum of the lengths of the sides or by using the formula P = 2l + 2w. Since perimeter is a length or distance, the unit of measure is inches, feet, yards, or miles. The area of the rectangle is found by using the formula A = l × w.
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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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In the next Java line, we used a mathematical formula to calculate the Perimeter of the Triangle using the formula P = a + b + c. s = (a + b + c)/2; Next, we are calculating the area of a triangle using Heron's Formula. Here Math.
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Area is measured in square units. The area of the rectangle can be calculated using the following formula: A = l   w, where l represents the length and w represents the width. Perimeter is the length of the boundary of the shape. It can be calculated adding the measurements of each side.
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To find the perimeter of a shape, measure each of the sides and add them all together. To find the area of a square, rectangle, or other parallelograms, multiply the length by the width.
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['public class Perimeter.', 'int r, l, b, s1, s2, s3;', 'double pi = 3.14,perimeter;', 'Scanner s = new Scanner(System.', 'void circle()', 'System. out. print("Enter radius of circle:");', 'r = s. nextInt();', 'perimeter = 2 * pi * r;']
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The Perimeter of an Irregular Quadrilateral 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 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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To find the perimeter of a rectangle, add the lengths of the rectangle's four sides. If you have only the width and the height, then you can easily find all four sides (two sides are each equal to the height and the other two sides are equal to the width). Multiply both the height and width by two and add the results.