Question

1. the side of a square was 4.3 meters long. find the area of the square in square meters.

Explanation:

Step1: Recall the formula for the area of a square

The area formula for 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 \(s = 4.3\) meters. Then \(A=(4.3)^2\). Using the formula \((a + b)^2=a^{2}+2ab + b^{2}\), where \(a = 4\) and \(b=0.3\). So \((4.3)^2=(4 + 0.3)^2=4^{2}+2\times4\times0.3+0.3^{2}\).

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Answer:

\(18.49\) square meters