Chris claims that path A is 2 miles longer than B. - id210632219, aliviafrancois2000

Question

Mathematics: Chris claims that path A is 2 miles longer than B. What calculation error might Chris have made? What is a correct comparison of the length of path a to the length of path B?

aliviafrancois2000 · Accepted Answer

Yes, Dayson can completely cover the package with wrapping paper.

Step-by-step explanation:

Given: The rectangular prism is 50 centimeters by 20 centimeters by 18 centimeters.

Area of wrapping paper is 1 square meter.

To find: whether he can completely cover the package with wrapping paper

Solution:

Total surface area of the rectangular prism = 2(lb + bh +hl)

where l denotes length, b denotes breadth and h denotes height

Total surface area of the rectangular prism = $2\left [ (50)(20)+(20)(18)+(18)(50) \right ]$

$=2\left ( 1000+360+900 \right )\\=2(2260)\\=4520\,\,cm^2$

As $1\,m^2=10000\,cm^2$ ,

Total surface area of the rectangular prism = $4520\,cm^2=0.4520\,m^2$

As Dayson has $1\,m^2 0.4520\,m^2$ of wrapping paper, he can completely cover the package with wrapping paper.

Chris claims that path A is 2 miles longer than B. What calculation error might Chris have made? What is a correct comparison of the length of path a to the length of path B?

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