Perimeter of a Parallelogram Practice

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Question 1

Find the perimeter of the following parallelogram.

parallelogram with sides of 4cm and 7cm


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Select and check your answer...

A. 22 cm
B. 25 cm
C. 28 cm
D. 31 cm

Step by Step Solution

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    Step 1

    To find the perimeter, we just need to add all the side lengths together. The picture below shows all the side lengths of the parallelogram:

    parallelogram with all the side lengths shown
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    Step 2

    Let the perimeter be P. By adding all the side lengths, we have:

    Calculating the perimeter of the parallelogram
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    Step 3

    Now, the calculated number, 22, has no meaning unless we include the unit for it. Since the sides are in centimeter, the perimeter will also be in centimeter. Hence:

    P = 22cm
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    Step 5

    Clearly, the answer is A.