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Find the perimeter of a square the side or the perimeter of the square and the length of it side directly proportional quantities explain a =2 cm

User Dcbyers
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1 Answer

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1.

We know that the side of a square is a (a = 2 cm) and we must calculate the perimeter.

To find the permeter of a square we must use the next formula


p=a+a+a+a=4a

Now, replacing a = 2 cm in the formula


p=4(2\operatorname{cm})=8\operatorname{cm}

The perimeter of the square is 8 cm.

2. Yes, they are.

In the formula for the perimeter of a square we can see that the perimeter is always the length of its side four times. So, when the length grows the perimeter does to. This is definitely a directly proportional relationship between Side length and Perimeter.

User Deepak Sharma
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