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Find the perimeter of a rectangle whose length is 35 centimeters and width is 15 centimeters.
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Let’s solve this problem by first sketching a picture of this rectangle.
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Okay, here we have a rectangle.
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We’ll need to label it with the length and width.
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The length of this rectangle is 35 centimeters.
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The width of this rectangle is 15 centimeters.
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To find the perimeter, we’ll need to find the sum of all sides of this rectangle.
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To find the perimeter of this rectangle, we’ll need to know the measure of all four sides.
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Across from the length of 35 centimeters, will be another length of 35 centimeters.
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Across from the width of 15 centimeters, is another width of 15 centimeters.
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In a rectangle, opposite sides have the same measures.
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Okay, back to finding the perimeter.
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The perimeter will equal every side added together.
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35 centimeters plus 15 centimeters plus 35 centimeters plus 15 centimeters.
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35 plus 15 equals 50 centimeters.
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35 plus 15 equals another 50 centimeters.
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We add 50 plus 50 which equals 100 centimeters.
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The distance around this rectangle or the sum of all sides, the perimeter, is 100 centimeters.