Brian said 78+92+85 is equal to 300 because each addens is close to 100, and three 100s is the same as 300. Explain why Brian's
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Perimeter of the carpet = 21.8 m
Area of the carpet =
<u>Given</u>:
<em>Dimension of the living room:</em>
<em />
<em>A. </em><em>Perimeter </em><em>of the carpet = perimeter of a </em><em>rectangle</em>
Perimeter =
Substitute
Perimeter of the carpet = 21.8 m (The digits here are significant)
<em>B. </em><em>Area </em><em>of the carper = </em><em>area </em><em>of a </em><em>rectangle </em>
Area =
Substitute
Area of the carpet = (the digits here are significant)
Therefore, considering the rules of significant digits:
Perimeter of the carpet = 21.8 m
Area of the carpet =
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