Question

Mental Maths The perimeter of a square of side 5 cm is what​

Answer 1

Step-by-step explanation:

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Answer 2

To find : perimeter of square

Given : side of square is $5\ cm$

Solution :

• Perimeter of square is the total length of boundary of square .
• We know that all four sides of square are equal .
• If ' $a$ ' is the side of square then perimeter of square is given by,
• Perimeter of square $=4 a$
• Therefore, by substituting the value in above formula we find perimeter.
• Perimeter of square $=4 \times 5$

                                          $= 20\ cm$

Hence, perimeter of square is $20\ cm$ .