Perimeter of a Square Practice

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Question 1

Given a square where the length of each side is 2cm. Find the perimeter of this square.

Answer

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Select and check your answer...

A. 5 cm
B. 6 cm
C. 7 cm
D. 8 cm

Step by Step Solution

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    Step 1

    The picture below shows the square. The length of each side is 2cm.

    a square with all sides of length 2cm
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    Step 2

    To calculate the perimeter, we can start with the formula for the perimeter of a square:

    formula for the perimeter of a square, P=4L
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    Step 3

    Since the length of each side is given as 2cm, we can substitute L with 2. After doing so, we can calculate for P:

    Calculating the perimeter of a square
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    Step 4

    Now, the calculated number, 8 only has meaning if we include the unit for it. Since the length is given in cm, the unit the perimeter will also be in cm. Hence:

    P = 8cm
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    Step 5

    Clearly, the answer is D.