Question

1. find the area of a square with a side length of 2.2 meters. 19. the length of one side of a square is 7.5 meters. what is the perimeter of the square?

Explanation:

Step1: Recall the formula for the area of a square

The formula for the area \(A\) of a square is \(A = s^2\), where \(s\) is the side - length of the square.

Step2: Substitute the given side - length into the formula

Given \(s = 2.2\) meters. Then \(A=(2.2)^2=2.2\times2.2\).

Step3: Calculate the product

\(2.2\times2.2=(2 + 0.2)\times(2 + 0.2)=4+0.4 + 0.4+0.04 = 4.84\) square meters.

Step1: Recall the formula for the perimeter of a square

The formula for the perimeter \(P\) of a square is \(P = 4s\), where \(s\) is the side - length of the square.

Step2: Substitute the given side - length into the formula

Given \(s = 7.5\) meters. Then \(P = 4\times7.5\).

Step3: Calculate the product

\(4\times7.5=(4\times7)+(4\times0.5)=28 + 2=30\) meters.

Answer:

The area of the square is \(4.84\) square meters.

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