How to find a perimeter of a whole number
To find the perimeter of a shape with whole number sides, you need to:
1. Identify the shape: Determine the type of shape you are working with (square, rectangle, triangle, etc.).
2. Measure the sides: Use a ruler or measuring tape to measure the length of each side of the shape.
3. Add up the sides: Add the lengths of all the sides together to find the total perimeter of the shape.
4. Round to the nearest whole number: If necessary, round the total perimeter to the nearest whole number.
Example: Find the perimeter of a square with sides that measure 7 centimeters each.
1. Identify the shape: Square
2. Measure the sides: 7 cm x 4
3. Add up the sides: 7 + 7 + 7 + 7 = 28 cm
4. Round to the nearest whole number (not necessary in this example): 28 cm.
Therefore, the perimeter of the square with sides that are 7 centimeters long is 28 centimeters.
To find the perimeter of a whole number, you need to know the shape and dimensions of the object you are working with. The perimeter is the distance around the outer edge of the object. Here are the steps to find the perimeter of different shapes:
1. Square: To find the perimeter of a square, multiply the length of one side by 4. Perimeter = 4 × side length.
2. Rectangle: To find the perimeter of a rectangle, add the lengths of all four sides. Perimeter = 2 × (length + width).
3. Triangle: To find the perimeter of a triangle, add the lengths of all three sides. Perimeter = side A + side B + side C.
4. Circle: To find the perimeter of a circle, use the circumference formula. Perimeter = 2 × π × radius, where π (pi) is approximately 3.14.
5. Regular Pentagon: To find the perimeter of a regular pentagon (a polygon with five equal sides), multiply the length of one side by 5. Perimeter = 5 × side length.
Remember, the units of measurement for the sides should be the same (e.g., centimeters, inches, etc.) when calculating the perimeter.