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9 April, 00:38

Suppose you are asked to find the area of a rectangle that is 2.1-cm wide by 5.6-cm long. Your calculator answer would be 11.76 cm².

Now suppose you are asked to enter the answer to two significant figures.

Enter your answer to two significant figures and include the appropriate units.

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  1. 9 April, 00:41
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    Area = 11.76 cm^2

    Area = 12 cm^2 (rounded to two significant figures)

    Explanation:

    Suppose you are asked to find the area of a rectangle that is 2.1-cm wide by 5.6-cm long. Your calculator answer would be 11.76 cm².

    Now suppose you are asked to enter the answer to two significant figures.

    Enter your answer to two significant figures and include the appropriate units.

    Given:

    Length of rectangle L = 2.1 cm

    Width of rectangle W = 5.6 cm

    Find:

    Area = L * W = 2.1 cm * 5.6 cm = 11.76 cm^2 (Shown)

    Rounding off the answer to 2 significant figures. We cut off the above value from 11.76 to 11 while rounding up due to 0.7; Hence, A = 12 cm^2
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